The Adventures of Little Archie #20

While on vacation in Florida, Little Archie goes out in a boat with his cousin Dan and his girlfriend Vicki. While Dan and Vicki are diving, they are attacked by a prehistoric sea monster once thought to be a legend: Plesiosaur, an ancient creature who has come back from the depths to search for his long-lost mate. Little Archie's only hope of saving his friends may lie in an unlikely source: the new pop music hit \"Stone Age Rock\" by Waldo Pinckley.