Deep trouble / Stine, R. L

Billy and his sister are visiting their Uncle Dr. Deep on a tiny Caribbean island.

Billy learns a very dangerous lesson when he ignores his uncle Dr. Deep's warning to stay away from the coral reefs while diving and encounters a horrifying half-human, half-fish creature lurking deep below the surface.

Billy learns a very dangerous lesson when he ignores his uncle Dr. Deep's warning to stay away from the coral reefs while diving and encounters a horrifying half-human, half-fish creature lurking deep below the surface.