Issue: #21
The gang finally reaches the underground base, only to discover that their nightmare is just beginning. Plus, the fate of Scrappy-Doo—revealed at last! Plus, the daring adventures continue as Secret Squirrel goes where many men have gone before…!
Creators: Harvey Richards, J.M. DeMatteis, Hi-Fi, Carlos D'Anda, Travis Lanham, Philip Tan, Keith Giffen, Andy Owens, Elmer Santos, Diego Lopez, Marie Javins, Ron Wagner
Characters: Cliffy, Scrappy Doo, Secret Squirrel, Velma Dinkley, Daphne Blake, Shaggy, Scooby-Doo, Fred Jones