A group of third graders solve fun mysteries in this collectible boxed set that includes all six books of the Third-Grade Detectives series

This collectible boxed set includes:
The Clue of the Left-Handed Envelope
The Cobweb Confession
The Mystery of the Hairy Tomatoes
The Puzzle of the Pretty Pink Handkerchief
The Riddle of the Stolen Sand
The Secret of the Green Skin