Usman Grant and the Cheating Cherub - Thimbleberry Mysteries, #1

Somehow Troy Angelo, whose face is as sweet as an angel but his personality is as sour as lemons went from being the worst student in  history class to getting a perfect score on the test! Seventh-grader Usman Grant who loves movies, dressing up for school, and getting perfect scores himself, and his best friend, Dana Batyrov, punk rocker and softball queen, are recruited by Mr. R to find out if and how Troy cheated and if it has anything to do with a cafeteria food fight, Dana's favorite band, the Odious Oddballs, or Usman's non-stop movie references?