Graphic adventure serially told in Look-In, vol 8 #21-#24, 2 pages each for 8 black & white pages.
Off the coast of New Guinea, the Cetacean is looking for a new species of fish recently sighted. As Mark Harris leaves the vessel to look for himself, at the same time, a remote tribal priest above him on the surface is throwing a bound man into the deep waters as a sacrifice to the gods. When the Man from Atlantis saves the man by bringing him to the surface, he incurs the wrath of the shaman.