I Spy Ultimate Challenger: A Book of Picture Riddles

Think you know every I Spy book out there? Think you've found every last bauble, bow, striped cat, and cloudy ship? Think again! Jean Marzollo has written her most challenging riddles yet to accompany Walter Wick's fabulous photographs culled from the original I Spy books. You've never seen I Spy like this!

The third of three I Spy Challengers -- be sure to check out Super Challenger and Extreme Challenger as well!

The New York Times bestselling I Spy series continues to amaze search-and-find fans. The amazing photographs paired with curious rhyming puzzles will mesmerize readers of all ages. It's time to unplug and play I Spy!