Scrooge's Old Number One Dime is lost with the sinking of an ocean liner. Scrooge takes Donald and his nephews with him to the bottom of the sea to look for it. There they find, not Atlanteans, but Martians! In another story, the divers Scrooge has hired for an underwater treasure hunt turn out to be the Beagle Boys.
Characters: Uncle Scrooge; Donald Duck; Huey; Dewey; Louie; Clerkly; Beagle Boys
Script: Carl Barks; Gary Leach; Bob Foster
Pencils: Carl Barks; Gutenberghus; Frank Smith
Inks: Carl Barks; Gutenberghus; Frank Smith
Colors: Susan Daigle-Leach; Janice Miller
Letters: Garé Barks; Bill Pearson
