Scooby-Doo, Where Are You? #46

When Shaggy and Scooby dig up a mysterious artifact on the beach, they take it to the local college, where the head of the Marine Archaeology Department claims to have recovered hundreds of similar artifacts - evidence that the lost civilization of Atlantis was real! So when some creatures calling themselves Atlanteans show up to cause trouble, the whole gang has to figure out what's up.

Characters: Daphne Blake, Fred Jones, Scooby-Doo, Shaggy, Velma Dinkley