The gang chases a strange monster into a costume party as they try to identify the thief hiding in the monster suit. Using the clues they found along the way, they nab the thief in a room full of monsters.
The second tale by experienced Scooby-Snackers John Rozum, Joe Staton and Scott McRae depict the Gang apres midi and put an Ellery Queen spin on the story. The mystery will strain very few brains, but it's still kind of neat.
Joe Staton for this tale is more expressive in the artwork. His depiction of the silhouetted Mystery Inc. with only their flashlight beams aglow is a particularly ingenious homage to the mystery genre.