In order, the books in the CHERUB series by Robert Muchamore are "The Recruit," "Class A," "Maximum Security," "The Killing," "Divine Madness," "Man vs Beast," "The Fall," "Mad Dogs," "The Sleepwalker," "The General," "Brigands MC" and "Shadow Wave," as of 2015.
"The Recruit" introduces the main character, James, and explains how he became a CHERUB agent. In "Class A," James must infiltrate a drug dealer's organization to take him down. "Maximum Security" places James undercover in an American prison to break out an inmate. In "The Killing," James must befriend a small-time crook who suddenly has big money to find out where it came from.
"Divine Madness" follows James as he investigates a religious cult in Australia. "Man vs Beast" plunges James into the controversial world of scientific animal testing. In "The Fall," James must escape Russia after a failed MI5 mission. "Mad Dogs" puts James in the middle of a gang war. "The Sleepwalker" involves the investigation of a potential terrorist attack based on the word of a child with a history of violence and emotional problems.
"The General" describes a war game at a military training facility. "Brigands MC" introduces James to a new CHERUB agent, Dante, as the two infiltrate a dangerous motorcycle gang. "Shadow Wave" details James' last CHERUB mission in the wake of a tropical tsunami.