Together the humans edged along the cliff wall, their goal the valley beyond the pool. For a few minutes it seemed that they might be able to gain it undetected by the monsters. For one of the unhurt creatures had gone to work on the body in the pool. But when its smaller companion made to join it, fangs and talons threatened, forcing that other to withdraw, hissing fury. As its head swung back and forth it sighted the Terrans. An arching leap brought it after them. Both the length and speed of that bound panicked the cornered men. They scrambled into the meager protection offered by the boulders and fallen rock. Santee’s second bullet tore a hole in the sealed breast of the pursuer without slowing its charge. Dard pressed the firing stud on the ray gun. But the responding beam was weak. It clipped the side of thee weaving head, shearing off part of the skull and one eye, and cutting neck muscles so badly that the battered head flopped erratically.
Dard fired again-with no result. The clip left in the weapon must have been exhausted! His ears roared as Santee shot from beside him. But the bullet only nicked the shoulder of the writhing body. Despairing they scuttled and backed away, keeping in among the rough footing. But they were past the pool, in the middle of the valley, on a course which paralleled a path worn deep and smooth by the feet of the monsters.
The scream of the hunter behind them was cut by a trumpeting squeal. A second was bearing down to join in the chase.
“Ahead— three-four yards”—Dard got out the words between tearing breaths—“hole—too—small—”
He concentrated on reaching that haven, and Santee ran beside him. The hole was a perfectly round one, and from it ran the monorail of the ancient transport system. They threw themselves into the dark, scrambling on until Dard brought up against a heavy object which gave under his weight, slipping on so suddenly that he sprawled face down, the wind driven out of him.
When he caught his breath again he sat up, still groggy. The crack of the rifle filled the tunnel with a blast of sound.
“Got one at last! And it’ll block up that hole-for a while anyways. But it ain’t healthy in here-they can get in -squeeze themselves altogether and do it. What the-!” The big man ended his report with an exclamation of both outrage and fear.
Dard had breath enough to ask: “What’s the matter?”
“That was the last round, I just fired. You got another clip for the ray gun?”
“No.”