Who Stole the Wizard of Oz Author:Avi This is one of Newbery Honor author Avi's most popular middle-grade mysteries. It revolves around a rare edition of The Wizard of Oz missing from the local library. When Becky is accused of stealing it, she and her twin brother Toby set out to catch the real thief and prove her innocence. Clues cleverly hidden in four other books lead to a hidd... more »en treasure -- and a gripping adventure.« less