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Jeff Hirsch

Books by Jeff Hirsch

Series by Jeff Hirsch

The 39 Clues

The 39 Clues

39 clues to unscramble. One fabulous prize to win. It’s a riddle, a book and a game to play. Are YOU up to the challenge? Written by celebrated author Rick Riordan, with a real $10,000 prize to win, this interactive challenge takes books to a place they’ve never been before.

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