I Spy: Ultimate Challenger
Jean Marzollo, Walter Wick
Hardcover
(Cartwheel Books, May 1, 2005)
With rhyming riddles and search-and-find photographs, this book has sold more than 100,000 copies in hardcover!A compilation of twelve search-and-find photographs culled from the eight original I Spy books with "challenging" new riddles.More than 100,000 copies of I Spy Ultimate Challenger have been sold in hardcover.
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