Detectives beware! Carmen Sandiego is on the loose again, and she's trying to steal something from each of the 50 U.S. states -- from Massachusetts' Plymouth Rock to Alaska's Mt. McKinley! Even if you don't catch Carmen, you'll love using the U.S. flag stickers and solving a puzzle for each of the 50 U.S. states! Where is Carmen Sandiego?: U.S. Sticker Book is a paperback.