Bruce Wayne attended a charity event held on a cruise ship by Ms. Bader-Smythe. It was attacked by an aquatic humanoid. "Orca" took Bader-Smythe's necklace and escaped back into the sea. Batman investigated Orca's motives by visiting a marine research facility / aquarium run by Dr. Grace Balin. Batman encountered Orca again at a place where stolen jewelry was fenced. Two were killed; Orca escaped into the sea.