BATMAN VS. MYSTERY INC. IN A SLEUTHING SHOWDOWN! Mystery Inc. loves looking for clues… so when the Huntingstun Library sets up a sleuthing competition with a huge prize, they are determined to win — Scooby snacks aren’t free, after all. But every time they’re about to complete a level, Batman foils them! Is he also vying for the prize? Does the Batmobile need an upgrade? Or are the teens tangled up in a master villain’s master plan?