Web of the Dreamweaver

S2 E4: A rash of strange crimes occurs when a number of prominent Crystal Cove citizens destroy the things they love most! A car. A house. A food empire. The gang investigates and soon discovers that each of these citizens had a dream wherein the Dreamweaver, a horrible goblin-king, told them to do it! Meanwhile, with Daphne back in Mystery Inc., the gang doesn't really need Hotdog Water anymore. She leaves the gang...but she's not happy about it...and she's secretly still working for Mr. E as his spy. As the gang gets deeper into the mystery of the Dreamweaver, they uncover the fact that Sheriff Stone and the three other citizens were avid practitioners of a fantasy role-playing game called "Crypts & Creatures" when they were young. The Dreamweaver was a monster created by then Crypt-Master Bronson Stone! Using their skills, Mystery Inc. cracks the mystery and realizes it's an inside job.