Issue: #297
Last valuation update: 2025-09-26
Batman and Robin track down a gangster to the island of Koba Kay where they find him dead, most likely from the legendary beast who stalks the waters around the island.
First appearances: Sea-Boy
Creators: Bill Finger, Sheldon Moldoff, Charles Paris, Jack Miller, Joe Certa
Characters: Batman, Dick Grayson, Martian Manhunter, Aquaman, Tempest, Captain Harding, Topo, Sea-Boy