Amy and Dan Cahill are hot on the trail of one of 39 Clues hidden around the world. When there's a Clue on the line, anything can happen.
New York City : Scholastic Audio, 2008.
Downloadable audio file.
Title from: Title details screen.
Read by David Pittu.
Requires OverDrive Media Console (WMA file size: 59471 KB; MP3 file size: 116656 KB).
Mode of access: World Wide Web.