Boom!Audiobook CD - 2010
When Jim and Charlie overhear two of their teachers talking in a secret language and the two friends set out to solve the mystery, they do not expect the dire consequences of their actions.
Publisher: New York : Random House/Listening Library, p2010.
Characteristics: 3 sound discs (3 hr., 46 min.) : digital ; 4 3/4 in.