The gang has agreed to help their professor in the anthropology department. He introduces them to the 3000-year-old mummy of Anka; but a dour Arab named Dr. Najib warns them of a legend that says the mummy will come back to life and turn to stone anyone responsible for removing him from his tomb. The kids go to the malt shop for liverwurst-and-ice cream sandwiches; but when they return, they see a stone statue of their professor. The curse seems to have come true. Soon they’re being chased by the mummy, who demands the rare coin that Shaggy had accidentally pocketed. But an ancient mummy is no match for Scooby Doo and the meddling teenage sleuths.