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Looking for intriguing mysteries, great friendship stories, and quality chapter books for beginning readers? Look no further: Jigsaw and Mila are the best detectives on the market! The best detective in second grade is back -- and this time, he's cracking a Valentine's Day mystery! When the class's Valentine's Day candy stash disappears, it's up to Jigsaw and Mila to figure out who stole it. But there's more than one person with a sweet tooth in Ms. Gleason's classroom, so solving the mystery won't be easy. This case is no sweet treat!