Following up on the great success of "I Spy Super Challenger" and "I Spy Gold Challenger"--with combined sales of more than 800,000 copies--"I Spy Extreme Challenger" is even harder and more fun than readers can imagine. Toys, animals, food, and utensils are just some of the hidden objects to find.
Search-and-find riddles paired with amazing photographs will captivate kids of all ages in the bestselling I Spy series.

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!