Daphne locks everyone into an old house for the night to prove it's not haunted. But when she finds a secret diary, everything she reads comes true for Shaggy and Scooby, including ghosts! / Daphne and the guys with the "help" of Mr. Grumper, the seismologist, try to solve the mystery of the strange earthquakes that are happening on the Indian land, and the slimy monster that is trying to scare everyone away.