When Ms. Adolf hurts her back in a tango contest and goes on longterm leave, Mr. Rock (the music teacher) is called in as the sub. Hank is psyched . . . until Mr. Rock suggests that Hank attend an after-school reading program, which means he’ll miss tae kwon do. But when Hank gets a crush on a girl in the reading program, and when Mr. Rock says that instead of writing his autobiography (a class assignment), Hank can present his life in scrapbook form, well . . . life’s looking good. Then Hank finds out that his crush is actually the cousin of his nemesis, McKelty!

Discover a thrilling collection of middle grade mystery books that captivate young readers ages 9-12. These detective stories combine clever clues, unexpected twists, and interactive puzzles that readers solve alongside the characters.