NEW YORK, NY — May 23, 2008 — Scholastic begins the hunt for The 39 Clues™, an interactive multi-media adventure series, on September 9, 2008. The first book, The Maze of Bones, written by #1 New York Times best-selling author Rick Riordan, is scheduled for simultaneous publication in the United States, United Kingdom, Australia, New Zealand, and Canada. The official 39 Clues online game will also launch worldwide on September 9, 2008, on www.the39clues.com.