"While Scooby-Doo and the gang visit a tourist town, the Mystery Machine vanished in a patch of thick fog. Other vehicles have gone missing as well. Mystery Inc. is on the case! But can they unravel the mystery of the Mist Monster, or will they get lost in the fog?"--Provided by publisher.

"Follow Scooby, Shaggy, Velma, Daphne, and Fred into a bottomless cavern, which is haunted by the ghosts of Civil War soldiers. Or is it? The Mystery Inc. gang must uncover the secret of the haunted cave while taking care of another bottomless pit: Scooby's stomach"--