The Third-Grade Detectives Mind-Boggling Collection (Boxed Set) : The Clue of the Left-Handed Envelope; the Puzzle of the Pretty Pink Handkerchief; the Mystery of the Hairy Tomatoes; the Cobweb Confession; the Riddle of the Stolen Sand; the Secret of (Box

Collects six stories of the third-grade detectives solving mysteries, including "The Puzzle of the Pretty Pink Handkerchief," in which Todd, after finding a clue to a mystery in his tree house, enlists the help of his classmates to identify the trespasser who had left it there.