They were headed toward a dead section of coast, a deep strip of the strata beast which Surreshun’s people had killed to give themselves more protected rolling space. They had accomplished this by lobbing a series of very dirty atomic bombs ten miles inland and then waiting while the living coastline stopped killing and eating and drinking, and the coastline predators lost interest in the dead meat and left.
Fallout did not concern the rollers because the prevailing wind blew inland. But Conway had deliberately selected a spot which was only a few miles from a stretch of coast which was still very much alive, so that with any luck their first examination might turn out to be something more than an autopsy.
With the departure of the predators the sea’s plant life had moved in. On Drambo the division between plant and animal life was rarely sharp and all animals were omnivorous. They had to travel along the coast for nearly a mile before finding a mouth that was not either closed too tightly or too badly overgrown to allow entry, but the time was not wasted because Camsaug and Surreshun were able to point out large numbers of dangerous plants that even the heavily armored e-ts should avoid whenever possible.
The practice of extraterrestrial medicine was greatly simplified by the fact that the illnesses and infections of one species were not transmittable to another. But this did not mean that poisons or other toxic material secreted by e-t animals and plants could not kill, and on the Drambon sea bed the vegetation was particularly vicious. Several varieties were covered with poisoned spines and one acted as if it had delusions of being a vegetable octopus.
The first usable mouth looked like an enormous cavern. When they followed the rollers inside the vehicle’s spotlights showed pallid vegetation waving and wriggling slowly to the limit of vision. Surreshun and Camsaug were rolling out unsteady figure-eights on the densely overgrown floor and apologizing for the fact that they could not take the party any farther without risking being stopped.
“We understand,” said Conway, “and thank you.”
As they moved deeper into the enormous mouth the vegetation became sparse and more pallid, revealing large areas of the creature’s tissue. It looked coarse and fibrous and much more like vegetable rather than animal material, even allowing for the fact that it had died several years earlier. The roof began suddenly to press down on them and the forward lights showed the first serious barrier, a tangle of long, tusk-like teeth so thick that they looked like the edge of a petrified forest.
One of the Melfans was the first to report. It said, “I cannot be absolutely sure until Pathology checks my specimens, Doctor Conway, but the indications are that the creature’s teeth are vegetable rather than animal osseous material. They grow thickly on both the upper and lower surfaces of the mouth and to the limit of our visibility. The roots grow transversely so that the teeth are free to bend forward and backward under steady pressure. In the normal position they are angled sharply toward the outer orifice and act as a killing barrier to large predators rather than as a means of grinding them into small pieces.
“From the position and condition of several large cadavers in the area,” the Melfan went on, “I would say that the creature’s ingestion system is very simple. Sea water containing food animals of all sizes is drawn into a stomach or prestomach. Small animals slip through the teeth while large ones impale themselves, whereupon the inward current and the struggles of the animal concerned cause the teeth to bend inward and release it. I assume that the small animals are no problem but that the big ones could do serious damage to the stomach before the digestive system neutralizes them, so they have to be dead before they reach the stomach.”
Conway directed the spotlight toward the area containing the Melfan and saw it wave one of its mandibles. He said, “That sounds reasonable, Doctor. It wouldn’t surprise me if the digestive processes are very slow indeed-in fact, I’m beginning to wonder if the creature is more vegetable than animal. An organism of normal flesh, blood, bone and muscle of this size would be too heavy to move at all. But it moves, and does everything else, very slowly. . .” He broke off and narrowed the beam for maximum penetration, then went on, “You had better get aboard so we can burn a way through those teeth.”