Man From Atlantis #6 1978 GD-VG Vintage Comic

Author: Bill Mantlo
Art: Frank Robbins, Frank Springer
Cover Art: Ernie Chan

Mark Harris is lured into a "lost hidden land" where a prehistoric sea has remained untouched by time. Captured by his relentless enemy, Lars Skorba, the Man from Atlantis is held at the villain's mercy within this primordial environment. Skorba reveals a sadistic plan to use Mark as live bait for a gargantuan, prehistoric behemoth that stalks the ancient waters. With Dr. Merrill and the Foundation far out of reach, Mark must rely on his own wits and Atlantean strength to escape the jaws of the monster and survive the hazards of the hidden latitude.