One of Newbery Honor author Avi's most popular middle-grade mysteries is available in paper once again. The mystery 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 hidden treasure--and a gripping adventure.
"Avi combines simplicity of style with wit as he builds a believable, gripping plot that is highly accessible to young readers" (Booklist)
"This is fun reading!" School Library Journal