In Harry Potter and the Half-Blood Prince, Draco Malfoy uses a pair of enchanted coins to bypass the communication limits then placed around Hogwarts, thus managing to keep in contact with Madam Rosmerta, whom he had placed under the Imperius Curse. Draco reveals he got the idea from Hermione's DA coins, which were themselves inspired by Lord Voldemort's use of the Dark Mark to communicate with his Death Eaters.
In Harry Potter and the Chamber of Secrets, Ron Weasley receives a Howler from his mother, Molly Weasley, after he steals his father's enchanted car and flies it to Hogwarts with Harry. Neville Longbottom receives one from his grandmother after Sirius Black uses his list of passwords to enter the Gryffindor Common Room in Harry Potter and the Prisoner of Azkaban. Later in the series, Hermione receives one in Harry Potter and the Goblet of Fire after Rita Skeeter publishes an article in which she makes up a relationship between Hermione and Harry. Finally, Dumbledore sends Petunia Dursley a Howler in Order of the Phoenix, to remind her of the agreement to allow Harry to live at Privet Drive, when Harry's Uncle Vernon attempts to throw him out after being attacked by Dementors.
Invisibility cloaks hide the presence of the wearer by visual detection only, meaning that it does not stop people from being solid. Alastor Moody's magically charmed eye however was able to penetrate them. Creatures such as cats (Mrs Norris) and snakes (Nagini) rely more heavily on other senses unaffected by visibility (smell, hearing), so the cloaks are less effective in hiding from them. The Dementors in the books have no sense of sight and instead sense human despair, a sense unhindered by the use of an invisibility cloak.
Invisibility cloaks have played a major part in the series, they have been used by many characters, not just one. The cloak of Ignotus Peverell, which was passed down the generations to Harry is an extremely powerful cloak that seems to never lose its ability to render objects invisible. It also never is worn out despite constant use and is not affected by spells. It was possibly made by Ignotus himself, using powerful but unknown magic, rather than from the methods mentioned above. The story of the cloak says it was Death's cloak given to Ignotus, though "Death" is only personification in the story. This cloak is one of the three items of the Deathly Hallows (the others being the Resurrection Stone and the Elder Wand.)
James Potter, Harry's father, generations later inherited the Cloak of Invisibility as a descendant of the Peverell family. His son, Harry, then inherited it from his father, presented by Dumbledore, who had possession of it at the time of the death of Harry's parents. Moody is known to possess two. One of these was borrowed by Sturgis Podmore in the course of work for the Order of the Phoenix. Barty Crouch Senior possessed one as well, as he used it to hide his son.
The Deluminator (solely called the Put-Outer until Deathly Hallows) is a device used and invented by Dumbledore that can remove or absorb and later return the light from a light source to provide secrecy to the user. It looks like a standard cigarette lighter and makes its first appearance in Harry Potter and the Philosopher's Stone. In this instance, Dumbledore uses the Deluminator to darken Privet Drive, where the Dursley family household is located. This makes the Deluminator the first magical object to be shown in the novels. It was next seen in Order of the Phoenix where Dumbledore loans the Deluminator to Moody, who uses it when transporting Harry from the Dursleys' home to the headquarters of the Order of the Phoenix at Number 12, Grimmauld Place. In Half-Blood Prince, Dumbledore uses the Deluminator again to darken Privet Drive before collecting Harry.
Finally in Deathly Hallows, it is first referred to as the Deluminator. It is bequeathed to Ron by Dumbledore. After Ron had left his friends in anger, the Deluminator demonstrated the additional capability of a homing device. Ron hears the voices of Harry and Hermione through the device when they say his name and, when he clicks it, the emitted light enters his body and allows him to locate and Apparate to the vicinity of their camp. Ron speculates that Dumbledore had foreseen that he would abandon his friends. But Harry corrects him saying that Dumbledore knew Ron would always want to return to his friends. Rowling later stated that Dumbledore left it to Ron because he believed he might have needed a little more guidance than Harry and Hermione.
It was first seen in the second book, when Draco and his father, Lucius Malfoy, visited the Dark Arts store Borgin and Burkes in Knockturn Alley. (At that point, Lucius denied Draco's request to have it, saying that it was a tool for a common thief). And later on, in the sixth book, it was used by Draco when leaving the Room of Requirement, allowing him to escape from Ron and a few other members of Dumbledore's Army after using the Peruvian Instant Darkness Powder.
According to "The Tale of the Three Brothers", the Peverell brothers found Death. Death gave them one choice of anything they wanted; the first brother chose a wand that could not be defeated in battle, the second asked for a way to bring back someone from death, and the third selected a cloak that made the wearer invisible to hide from Death himself. According to Rowling, the story about how these objects came into existence is "perhaps" based upon Geoffrey Chaucer's "The Pardoner's Tale".
After boasting of his unbeatable wand, Antioch Peverell met his end – murdered in his sleep by a rival wanting to claim the wand. Ever since, power-hungry wizards have sought the wand. It eventually came to the possession of Gregorovitch, a Bulgarian wandmaker. Gregorovitch boasted about how he possessed the Elder Wand, as it would boost his popularity as he tried to reverse engineer its secrets as he faced competition from Ollivander. It subsequently fell to Grindelwald, who stole it from the famed wandmaker. The Stunning Spell Grindelwald sent at Gregorovitch while stealing the wand caused it to recognize him as its master, although this is never explicitly stated in Deathly Hallows. Ultimately Grindelwald was defeated by Dumbledore, who then assumed control of the wand, it being the "only hallow [he] was fit to possess, not to boast of it or kill with it, but to tame it."
When Dumbledore arranged his death with Snape, he meant Snape to "end up with the Elder Wand." Because his death would not have been the result of his defeat, Dumbledore hoped this might break the wand's power. However, since Draco disarmed Dumbledore, the plan failed and Draco became the wand's new master. After Dumbledore's death, the wand was placed inside his tomb. At the beginning of the final book, Voldemort attempts to use a Killing Curse on Harry as the boy and the decoys attempt to flee Privet Drive: at this time Harry's wand mysteriously acts of its own accord and stops Voldemort. This is what causes Voldemort to seek the Hallow. Voldemort opened Dumbledore's tomb and claimed the wand as his own. Only later did he learn that he never mastered the wand because he did not gain ownership from its previous owner. Thereafter he slew Snape, not realizing that the wand's allegiance had passed to Draco, even though Draco never had the Elder Wand itself in his possession; furthermore, Draco was Disarmed by Harry, and thus relieved of the Elder Wand's allegiance, before Voldemort even took possession of the Wand itself. In the Battle of Hogwarts, the Elder Wand recognizes its true master, and when confronted with Harry's Expelliarmus charm, the wand causes Voldemort's final Killing Curse to rebound and kill him.
Harry uses the Elder Wand to repair his damaged holly and phoenix feather wand (an act that Ollivander believed impossible according to what he knew — he mentions that wandlore is very ancient and complicated). Harry intends to return the wand to Dumbledore's tomb, in the hopes of fulfilling Dumbledore's original plan: for the reigning owner of the Elder Wand to die a natural death, thus ending its bloody trail of violence.
Rowling revealed in an interview that the first working title for Deathly Hallows was Harry Potter and the Elder Wand.
Dumbledore recovered the ring from Marvolo's estate, recognizing it as both a Horcrux and one of the Deathly Hallows. Forgetting that as a Horcrux, the Resurrection Stone was likely cursed, and motivated by personal desire, Dumbledore attempted to use the Resurrection Stone to talk to his deceased family. However, the curse destroyed his hand and began to spread throughout his body. Though the spreading was partly contained in the destroyed and blackened hand by Snape, Dumbledore was doomed, having perhaps a year to live. Before summoning Snape, Dumbledore had destroyed the Horcrux, using Godric Gryffindor's sword.
The stone was later passed to Harry through Dumbledore's will, hidden inside a Snitch. The Snitch, the same one Harry caught in his first-ever Quidditch match (Harry originally caught the Snitch in his mouth and nearly swallowed it), revealed the message "I open at the close" when touched by Harry's lips. Harry is unable to open the Snitch until he is about to die, and he realizes that "the close" means the end, or his death. Harry uses the stone to summon his parents, Sirius, and Lupin to comfort him before he meets Voldemort. The stone slips through Harry's numb fingers in the Forbidden Forest. He and Dumbledore's portrait later agreed that Harry would neither search for it nor tell others where it is. In a recent interview, Rowling said she would like to believe that a centaur's hoof pushed it into the ground, burying it forever.
In Deathly Hallows, it is revealed that Harry's cloak is in fact the Cloak of Invisibility: one of the Deathly Hallows. It originally belonged to Ignotus Peverell. After his death, the cloak was passed down from father to son, through Peverell's descendants to James Potter and eventually to Harry. The cloak was not in James' possession the night he was murdered; he had previously lent it to Dumbledore, who was greatly interested in the Deathly Hallows, to study. Dumbledore gave the cloak to Harry several years later as a Christmas present during his first year at Hogwarts. Harry uses the cloak throughout the series in order to sneak around the school on various adventures. It is large enough for Ron and Hermione to accompany him, and they frequently do, although this becomes increasingly difficult as they grow up throughout the series. At the end of Book 7, Dumbledore explains to Harry that the Cloak's true magic is that it can shield and protect others as well as its owner, as demonstrated by Harry and his friends on various adventures under the cloak throughout the series.
While making the wearer invisible to ordinary people and wizards, some creatures are able to sense people hidden under it. Snakes for example cannot see through the Cloak of Invisibility, but they can sense movement and heat, and therefore can detect people under it. Mrs Norris also seems to see Harry when he wears the cloak. Wearers can also be detected by the "Homenum Revelio" spell. In Goblet of Fire, Moody's magical eye could see Harry through the cloak. In the Prisoner of Azkaban Dumbledore warns that Dementors' perception of humans is unhindered by invisibility cloaks, as they sense people through emotions.
At the conclusion of the seventh book in the series, Harry decides that the Invisibility Cloak will be the only Hallow that he will keep, and intends to pass it on to his descendants.
Until the debate over Severus Snape's allegiance was resolved in Deathly Hallows, a key argument for those who believed that Snape was still in league with the Order of the Phoenix was the fact that Snape appeared as an enemy in the Foe-glass of Barty Crouch, Jr. in the fourth book (an event that would not have occurred were Snape working for the Death Eaters).
The DVD of Philosopher's Stone contains a software approximation of a remembrall.
In Order of the Phoenix, it is shown that Secrecy Sensors are used at the Atrium Desk in the Ministry of Magic upon visitor to the government locale. Later in the book, Harry mentions that they can be easily fooled like its other dark-detecting counterparts. In Half-Blood Prince, due to Hogwarts's new stringent security measures, Argus Filch is assigned to run every student entering the castle with Secrecy Sensors. All the owls flying into Hogwarts, too, are placed under this measure to detect that no Dark object enters the castle through mail. Later, Hermione explains that though Secrecy Sensors detect jinxes, curses, and concealment charms, they cannot detect love potions (because they are not dark, though Harry considers them to be).
Sneakoscopes are introduced in Prisoner of Azkaban when Harry receives one from Ron for his 13th birthday. The sneakoscope appears again on the Hogwarts Express, and again up in Harry and Ron's dormitory. Harry later discovers that Scabbers, Ron's rat, who was present each time the Sneakoscope was spinning, is actually a traitorous Animagus named Peter Pettigrew. In Goblet of Fire, the somewhat paranoid Moody has several sneakoscopes that he somehow disabled (possibly related to a crack it was described as having), claiming, "It wouldn't stop whistling." However, it was later revealed that Mad-Eye was really Barty Crouch Jr under the effects of the Polyjuice Potion, thus explaining the constant alerts in his presence. Finally in Deathly Hallows, Hermione gives Harry a Sneakoscope for his seventeenth birthday which they later use to help as a lookout while in hiding.
Only the location of mortal peril is known on the round clock (it is situated where the numeral 12 would normally be). Throughout the first five books, the hands change to reflect the varying statuses of the family members, but by the sixth book, all nine hands point to mortal peril at all times, except when someone is travelling. Mrs Weasley takes this to mean that, with Voldemort having returned, everyone is always in mortal peril, but she can not verify this, because she does not know anyone else who has a clock like hers.
In Goblet of Fire, Ron was trying to build a card castle out of his Exploding Snap pack, playing cards that have the ability to explode at random. It is mentioned that this made building card castles more exciting, as they were likely to explode at any given time, and indeed his did so as he placed the last two cards on the top of the castle.
Recently, the company Deagostini released a magazine series called Harry Potter Chess, which is based on the life-sized game near the end of the film version of Philosopher's Stone and each piece is specially animated. The chess pieces that come with it are based on the life-sized pieces in the film. Arco Toys and others also have a Wizards Chess Set.
The Goblet of Fire is a goblet made of wood and is used at the beginning of every Triwizard Tournament. It is used solely to choose the participating school champions, serving as an "impartial judge". Slips of paper with the names of potential candidates are placed in the Goblet and, at the designated time, a representative from each school is chosen when the slip of paper containing their name spouts forth from the Goblet in a fountain of magical fire. The fake Moody stated once that the Goblet of Fire was "a very powerful magical object" and it is very difficult to be hoodwinked, unless someone uses an exceptionally strong Confundus Charm.
During its use in Goblet of Fire, it is placed in the entrance hall and surrounded by an "age line" (a charm placed by Dumbledore). An ageing potion cannot fool the Goblet, however, as was proven by Fred and George Weasley, who entered their names and had themselves thrown from the Goblet's presence. When not in use, the goblet is kept in a jeweled "casket".
Because the Sword was goblin-forged, it is indestructible and according to Griphook the goblin, the Sword was originally forged for the goblin Ragnuk the First and "stolen" (purchased) by Gryffindor. The Sword was stolen (or retrieved, as goblins would say) by Griphook when the Sword fell from Harry's grasp during the raid on Bellatrix Lestrange's vault in book seven. However, it again returned to human hands later in the book, when Neville pulled it out of the Sorting Hat and used it to decapitate Nagini, Voldemort's snake. In both incidents when it was drawn from the hat, it was used to kill a snake, the symbol of Slytherin. This shows that apparently, no matter where the sword happened to be at the time, it would reappear in the hat when a true member of Gryffindor house is in need of it.
Rowling has confirmed in her webchat that Gryffindor did not steal the sword from Ragnuk and that this belief is merely part of Griphook's goblin mistrust and prejudice against wizards.
Before sorting the students each year, the hat recites a new introductory song. These songs occasionally warn of danger to come, as in Order of the Phoenix. The Sorting Hat's songs vary in length and content, but always include a brief description of each house. It is suggested by Ron that the hat probably spends each school year thinking up the song it will sing at the next start-of-term banquet.
The Sorting Hat has shown the ability to conjure the sword of Gryffindor from under its brim on two instances; in Chamber of Secrets, it provides the sword to Harry Potter, and in Deathly Hallows, it delivers the sword to Neville. Dumbledore makes it clear in Chamber of Secrets that only a true Gryffindor can summon the sword in this fashion. The sword and hat together make up the two known relics of Godric Gryffindor.
The Sorting Hat had a difficult time placing Harry, almost placing him into Slytherin house before he requested specifically and emphatically not to be. The Hat instead placed him into Gryffindor, after both his parents. Rowling has stated that the reason for the hat's indecision as to which house to place him into was because it sensed the part of Voldemort's soul within Harry.
In Deathly Hallows the Sorting Hat is set on fire by Voldemort, although it appears the hat was not destroyed, as Neville was able to draw the Sword of Gryffindor from it immediately after. In the epilogue at the end of Deathly Hallows, the Hat's survival is confirmed, as Harry tells his youngest son that, if he really did not want to be Sorted into Slytherin the Hat would take his preference into consideration.
In the first two Harry Potter movies, the hat is voiced by actor Leslie Phillips.
According to Dumbledore, the Mirror "shows us nothing more or less than the deepest, most desperate desire of our hearts"; which is why Harry sees his family, while Ron sees himself achieving more than his older brothers — but cautions Harry that the mirror gives neither knowledge nor truth and that men have wasted away before it, entranced by what they see.
Dumbledore, one of the only other characters to face the Mirror in the novel, claims to see himself holding a pair of socks, telling Harry that "one can never have enough socks", and lamenting that he did not receive any for Christmas, since people will insist on giving him books. However, this is a lie. It is said in Deathly Hallows that what he really sees is his entire family alive and well and happy together again.
The Mirror of Erised was the final protection given to the Philosopher's Stone in the first book. Dumbledore hid the Mirror and hid the Stone inside it, knowing that only a person who wanted to find the Stone, but not use it, would be able to obtain the stone. Anyone else would see himself making an Elixir of Life or turning things to gold, rather than actually finding the Stone. Dumbledore tells Harry, "It was one of my more brilliant ideas, and between you and me, that's saying something."
The mirror has not been seen since Philosopher's Stone.
Rowling has revealed on her fansite that Veritaserum can be fooled using Occlumency and is not usually accepted in wizard courts.
Trick Wands are magical fake wands that turn into a silly item (rubber chickens, tin parrots, etc.) when someone tries to use them. Varieties that are more expensive beat the unwary user about the head and neck. Ton-tongue toffees make the eater's tongue grow to an alarmingly large size temporarily as read about in the fourth book when Fred 'accidentally' drops some in front of Harry's cousin, Dudley. Canary Creams make the eater turn into a large canary for a short amount of time.
More objects include Screaming yo-yos, which scream loudly when worked, and Stink Pellets, which are used to distract prefects and teachers, and give an unpleasant smell.
Users of these devices view the memories from a third-person-point-of-view, providing a near-omniscient perspective of the events preserved. This, of course, raises questions of how they are able to see things beyond what they have remembered. Rowling answered this question in an interview, confirming that memories in the pensieve allow one to view details of things that happened even if they did not notice or remember them, and stated that "that's the magic of the Pensieve, what brings it alive". The "memories" contained in the Pensieve have the appearance of silver threads. Memories that have been heavily manipulated or tampered with to alter perspectives, or are simply aged and gone-spoiled (such as Slughorn's), may appear thick and jelly-like and offer obscured viewing. Memories are not limited to just those of humans, since at least one house-elf (Hokey) provided Dumbledore with a memory as well.
Dumbledore's Pensieve first appears in Goblet of Fire, again in Order of the Phoenix, and plays a pivotal role in Half-Blood Prince. It makes a last appearance in Deathly Hallows when Harry uses it to uncover the truth about Snape.
Broomsticks are treated as a major consumer product in the Wizarding world. There are numerous brands and models of brooms, all of which vary in their capabilities. These range from expensive high-performance models to toy broomsticks for young children that only fly a few feet off the ground to even family-sized broomsticks that have room for an entire family to sit down on and have a luggage compartment below the seating area. The cultural significance of broomsticks in the world of Harry Potter is similar to that of the real life automobiles.
Since Harry Potter plays Quidditch, his brooms - a Nimbus 2000, and later a Firebolt - are prominent in the series. The Nimbus 2000 was given to him by special consent of Dumbledore via Professor Minerva McGonagall, who had chosen him as Seeker. The Firebolt was given to him by Sirius as a Christmas gift. The Firebolt remains the fastest broom in the world, having surpassed the previous record holder, the Nimbus 2001, and its price is so grand that it is only available upon request (Harry Potter never asks for the price, and thus it remains unknown). However Harry loses his Firebolt in Deathly Hallows and it is unknown what he replaces it with afterwards, or if he does at all.
In Chamber of Secrets, Ron and Harry miss the train and travel to Hogwarts in Ron's father's car, a flying Ford Anglia.
Sirius owned a flying motorbike, which he lent to Hagrid the night James and Lily Potter died; it is first seen when Hagrid delivers the baby Harry to Number Four, Privet Drive in the first book, and then again when Hagrid uses it to help Harry escape from the Dursley's in the seventh book.
The Knight Bus is a heavily enchanted, violently purple, triple-decker bus that transports wizards and witches. It makes its first appearance in Prisoner of Azkaban where Harry unintentionally hails it by holding his wand arm out. Harry has a final ride on the Knight Bus with a number of his friends in Order of the Phoenix. The Knight Bus is faster than travelling by broomstick, but not as fast as near instantaneous Floo powder and Apparating. The bus charges for the service; Harry Potter is charged 11 Sickles to travel from the town of Little Whinging to The Leaky Cauldron.
The bus functions as public transportation for the wizard or witch who cannot or will not choose another means of transportation. The riders are seemingly picked up by the bus from all over in-universe Great Britain, bringing passengers to the destinations of their choice with seemingly no set route. It bolts through the streets, entirely invisible to muggles and causes other objects to dodge it (rather than dodging the objects) for travelling short distances. For longer distances, the Knight Bus makes 160 km (hundred-mile) leaps accompanied by a great bang and jolt. The interior of the bus changes depending on the time of day, having seats by day and beds by night. The only mentioned limitation in travelling is that it cannot enter water.
The conductor of the Knight Bus is Stan Shunpike, and its driver is Ernie Prang in the third book of the series. In the third film, Stan is accompanied by a talking shrunken head voiced by Lenny Henry.
Floo powder is a glittering powder used by wizards to travel and communicate using fireplaces. It was invented by Ignatia Wildsmith (1227–1320) and named after the flue, which is the passageway that leads from a fireplace to the chimney so hot gases can escape. Floo powder can be used with any fireplace connected to the Floo Network. To transport from one fireplace to another, the traveller throws a handful of the Floo powder into the fireplace, steps into the fireplace, and states the intended destination in a clear and purposeful voice. Floo Powder can also be used for communication; a wizard or witch can kneel in front of the fire and stick their head into the fire, which will appear in the fire at another fireplace, leaving the witch or wizard free to talk.
In Chamber of Secrets, the Weasleys travelled to Diagon Alley by Floo powder. Harry did not say "Diagon Alley" clearly: he coughed while saying "Diagon Alley" so he was instead sent to Borgin and Burkes, in Knockturn Alley. In the fourth book, Arthur Weasley uses his position at the Ministry to have the Dursleys' fireplace temporarily connected to the Floo network, unaware that the fireplace had been blocked. Sirius uses the network to communicate with Harry in the same book. In the fifth book, Harry uses the Gryffindor fireplace and finally Umbridge's fireplace to communicate with Sirius; he is however forced to do so because Umbridge is monitoring all other lines of communication in and out of Hogwarts (thus why he did not communicate through Gryffindor's). The Floo Network is controlled by the Ministry of Magic. The Ministry also has over 700 fireplaces in its headquarters so ministry officials and workers can teleport straight from their homes to the ministry without the hustle and bustle of travelling on broom or by portkey.
A wizard merchant by the name of Ali Bashir is very keen to import flying carpets into Britain and is very upset that local laws are preventing him from doing so. He regularly berates Arthur about the subject, but it is very unlikely that the law will be changed.
In the series, a portkey is usually made from an unobtrusive object or bit of rubbish, to prevent Muggles from discovering their magical nature. When activated, the user feels a pulling or jerking sensation behind the navel, and then suddenly appears at the destination. With enough practice, a graceful landing is possible: after the Portkeyed trip to the Quidditch World Cup in fourth film, Cedric Diggory, Mr Weasley, and Amos Diggory landed on their feet, while the others (Harry, Ron, Hermione, Ginny and the twins) fell onto the ground.
In Goblet of Fire, Crouch Jr., who was impersonating Moody, made the Triwizard Tournament cup a Portkey so it would transport anybody who touched it straight to the hands of Voldemort, expecting it would be Harry. However, Harry took the cup together with Cedric, so Pettigrew murdered Cedric.
A Time Turner may be used for time travel. A large supply of Time-Turners is kept at the Ministry, as seen in Order of the Phoenix; however, during the events of that book a glass-fronted cabinet containing Time-Turners is destroyed. Due to their time-affecting properties, the cabinet is seen to fall, shatter and repair itself repeatedly. In Half-Blood Prince, Hermione mentions a Daily Prophet article stating that "the entire stock of Ministry Time-Turners" was destroyed during that incident. The books do not discuss who else may be in possession of Time-Turners outside of the Ministry.
Hermione receives a Time-Turner from McGonagall in Prisoner of Azkaban, so she could attend more classes than time would normally allow. Hermione is ordered to keep it a secret from everyone, including Harry and Ron, although they do notice the impossibility of her schedule, and several bizarre disappearances and reappearances- the increased schedule does leave her strained towards the end of the year, however. Hermione lets Harry and Ron in on the secret near the end of the book, where she and Harry use the Time-Turner to save Sirius and Buckbeak.
Hermione's Time-Turner resembles an hourglass pendant on a necklace; it is unclear if all of them do. The hourglass pendant is twisted to move through time, and the number of turns on the hourglass corresponds to the number of hours one travelled back in time. The travel ends as the traveller arrives to the point in time of which s/he went back in time (e.g. Hermione and Harry go back three hours; three hours after their arrival in the past, they return to the time period they turned back).
The Vanishing Cabinet is first seen in Chamber of Secrets when Harry in mistakenly transported to Borgin and Burkes in Knockturn Alley and hides in it to elude Draco and the man that appears to be his father. That cabinet's counterpart is mentioned in Chamber of Secrets when Sir Nicholas de Mimsy-Porpington convinces Peeves to drop it (thus breaking it) over Argus Filch's office in order to help Harry escape detention for "befouling of the castle" (tracking in mud). It was also used in Order of the Phoenix by Fred and George, when they forced Montague, the Slytherin Quidditch captain and member of the Inquisitorial Squad into it when he tried to take house points from Gryffindor. Draco then learns of Montague’s experience, learning that you could transport between the two cabinets and that the other is located in Borgin and Burkes. He later tells Voldemort of this and is instructed to fix the broken one at Hogwarts as so to transport the Death Eaters into the highly secured castle.
In Half-Blood Prince Draco visits the dark shop to ask for instruction in fixing the one broken Cabinet placed in the Room of Requirement at Hogwarts after Peeves broke it by dropping it in Draco's second year. After Draco pales and becomes fatigued in his complex struggle to fix the cabinet, he madly yells in triumph as he succeeds and allows the Death Eaters to finally enter the school. Thus, a chaotic battle begins in the castle between them and the Order of the Phoenix, ultimately leading to Dumbledore's death.
Rita uses the quill to interview Harry (inside a Hogwarts broomstick cupboard) about his participation in the Triwizard Tournament in Goblet of Fire for her column in the newspaper, The Daily Prophet. Harry continually tries to correct the inaccuracy of the quill to Rita. However, she rudely ignores him. Additionally in Deathly Hallows, Rita mentions in her interview concerning Dumbledore's posthumous biography that the Quick Quotes Quill helped her to write the book so quickly after his death.
At first glance, the Map is simply a blank piece of parchment; but when the user points their wand to the Map and says, "I solemnly swear that I am up to no good," the message "Messrs Moony, Wormtail, Padfoot and Prongs, purveyors of aids to magical mischief-makers, are proud to present the Marauders Map," and a detailed layout of Hogwarts' Castle (including secret passageways) is revealed. Saying, "Mischief managed!" returns the map to its original blank state. The Map gives information on how to open secret passageways, though several locations (such as the Room of Requirement and the Chamber of Secrets) do not appear on the map. It would seem that the four friends either did not have any knowledge of them, or-in the case of the former-they are unplottable. Furthermore, Animagus disguises or Invisibility Cloaks cannot fool the Marauder’s Map. Not even Polyjuice Potion can outwit the Marauder's Map. For this reason, Barty Crouch Jr., disguised as Moody, considered it a threat and asks to 'borrow' the map from a trusting Harry.
In Prisoner of Azkaban, Fred and George (who have no further need for it) give the Map to Harry so he can get to Hogsmeade Village through a hidden passageway. Snape later on found the Map in Harry's possession and tried to force it to reveal its secrets. It merely insulted him with mocking phrases, the Map retains an echo of its creators' personalities, much like the Sorting Hat remembers the thoughts and opinions of the school founders; the marauders had no happy memories of Snape. Lupin later took it with him. He returns the map to Harry after resigning his post at Hogwarts. The Map then on makes insignificant appearances in the books.
All the lines in the Map are made up of what at first glance are just random letters, but upon closer inspection are Latin words. In the books, there is no mention of Harry recovering the Map from the office of the Professor Moody impostor and Harry later uses it in upcoming books. When asked, Rowling answered that Harry had indeed sneaked into the office and recovered it in the days following the Third Task. She also commented that she had intended to include a scene or mention it. When asked during an online question session, "What child did Harry give the Marauders Map to if any?" (After his school years), Rowling responded "I’ve got a feeling he didn’t give it to any of them, but that James [one of Harry's sons] sneaked it out of his father’s desk one day. This is expected, as James Potter, the boy's grandfather, was also a mischief-maker.
Spellotape is referenced in all of the Harry Potter books, apart from Deathly Hallows, and is seen in the second film.
The only named wand shop is Ollivander's. This is where Hagrid takes Harry to buy his first wand. In the "Weighing of the Wands" chapter of Harry Potter and the Goblet of Fire, Ollivander is seen to evaluate two foreign wands: Krum's wand: a Gregorovitch creation, unusually thick; and Fleur's wand, whose core (a hair from her Veela grandmother) he felt created "temperamental" wands, which is why he did not use it himself.
Wands with cores from the same source give strange effects (Priori Incantatem) when forced to fight each other, as is the case with Harry and Voldemort's wands. In Goblet of Fire, it is revealed that each of their wands contains a tail feather from Fawkes, the phoenix belonging to Dumbledore. After Priori Incantatem, the wands get to know the opposites' master - this is explained in Deathly Hallows.
Wands are capable of changing masters. This is revealed in Deathly Hallows. When a wizard or witch is defeated, or if their wand is forcibly taken from them in a fight (a form of defeat), the wand will change its allegiance to the one who defeated its previous master and work perfectly well with its new master. It is unclear if the wand will continue to work properly for its original master if it is returned (not taken back in a fight). However, any wands removed from the owners using Expelliarmus (other than Dumbledore when disarmed by Draco in Half Blood Prince), seem to not change allegiance. If they have, they work perfectly well for their original masters when they retrieve them.