Secrets of the Unknown #90
In "Flash Gordon," Al Williamson’s dynamic art brings to life a thrilling underground adventure as Dr. Zarkov and the hero use a mysterious Mole Machine to uncover a hidden sea and the ancient city of Krenkelium. Captured by Princess Darla and sentenced to eternal exile, Flash and Zarkov must earn their freedom by confronting a hidden danger threatening the city—using wit, courage, and the princess’s help to prove their worth. The story, rendered in Williamson’s signature style with inks and lettering by the same hand, captures the classic sci-fi spirit of the era, all wrapped in a striking cover by Williamson.
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Dr. Zarkov, experimenting with Mongo technology, has developed a Mole Machine, and he and Flash use it to explore. Finding an underground sea and city, they are captured by Princess Darla and taken to her father, where they are sentenced to remain forever in the city of Krenkelium and their vehicle destroyed. With the help of the princess, they defy this sentence and, in the process, destroy a major threat to the city to prove their honorable intentions. Dropping off the princess after removing the threat, they head for home.
Plot details indexed by the Grand Comics Database (CC BY-SA).