The items that Jem and Scout found in the tree include Wrigley's Doublemint chewing gum, two pennies, a ball of twine, soap carvings of themselves and a defective pocket watch. The tree is located in front of the Radley place in Harper Lee's novel "To Kill a Mockingbird."
The items in the knothole of the tree are the children's channel of communication with Boo Radley, but the knothole is eventually cemented over by Nathan Radley. "To Kill a Mockingbird" was published in 1960, and author Harper Lee never wrote another book. The book won a Pulitzer Prize, and the movie was successful at the Academy Awards. The book is scheduled for its first electronic release on July 8, 2014.