This was not the first time Dalgard had faced the raging fury of a snake-devil thirsting for a kill. The slaying he had done in the arena was an exception to the rule, not the usual hunter's luck. And now that he saw the creature crouched at the far end of the hall he was ready. Sssuri, also, followed their familiar pattern, separating from his companion and slipping along the wall toward the monster, ready to attract its attention at the proper moment. Only one doubt remained in Dalgard's mind. This devil had not acted in the normal brainless fashion of its kin. What if it was able to assess the very simple maneuvers, which always before had completely baffled its species, and attacked not the moving merman but the waiting archer? It was backed against another door, a closed one, as if it had fled for refuge to some aid it had expected and did not find. But as Sssuri moved, its long neck straightened until it was almost at right angles with its narrow shoulders, and from its snake's jaws proceeded a horrific hissing which arose to a scream as its leg muscles tensed for a spring. At just the right moment Sssuri's arm went back, his spear sang through the air. And the snake-devil, with an incredible twist of its neck, caught the haft of the weapon between its teeth, crunching the iron-hard substance into powder. But with that move it exposed its throat, and the arrow from Dalgard's bow was buried head-deep in the soft inner flesh. The snake-devil spat out the spear and tried to raise its head. But the muscles were already weakening. It fought the poison long enough to take a single step forward, its small red eyes alight with brainless hate. Then it crashed and lay twisting. Dalgard lowered his bow. There was no need for a second shot. Sssuri regarded the remains of his spear unhappily. Not only was it the product of long hours of work, but no merman ever felt fully equipped to face the world without such a weapon to hand. He salvaged the barbed head and broke it free of the shred of haft the snake-devil had left. Knotting it at his belt he turned to Dalgard. "Shall we see what lies beyond?" Dalgard crossed the hall to test the door. It did not yield to an inward push, but rolled far enough into the wall to allow them through. On the other side was a room which amazed the scout. The colonists had their laboratory, their workshops, in which they experimented and tried to preserve the remnants of knowledge their forefathers had brought across space, as well as to discover new. But the extent of this storehouse with its bewildering mass of odd machines, tanks, bales, and stocked shelves and tables, was too much to be taken in without a careful and minute examination.