hands, he gave an exclamation of amazement. His body seemed to weigh nothing at all. This planet must be of smaller size than Earth, and, therefore, the gravitational attraction was less. On the ravine floor he looked about him warily. Titanic rock, smooth and polished from erosion, littered the expanse but stopped at the jungle edge. The trees were all the same, of equal height and girth. They seemed to be arranged in corridors or galleries, the way between them dark and shadow-filled. Standish knew he must exercise caution until he could explore those depths. The significance of his plight now swept upon him. He was alone on an alien planet. Even granting the Sirians would send out scouts to locate their prison ship when it failed to arrive, the chances of his being found were remote. Yet on the other hand, he alone had been spared death. And he had come upon a world, one perhaps in millions, which had an atmosphere capable of supporting human life. A sudden high-pitched drone broke the silence. Rising up from behind a pile of boulders a hideous winged shape shot toward him! Half bird, half saurian, the thing's head was enormous with an inflated cobra hood. Even as the creature closed in with incredible speed, Standish wheeled and ran for the safety of the wrecked space ship. He reached it and wormed his way through a gaping rent in the hull. The lizard-bird stopped short a few yards from the ship to stare perplexedly. Then with its queer droning cry still sounding, it zoomed into the air and flew out of sight. "Holy Hell!" Standish inhaled deeply. Dangers here were imminent. He must take steps to protect himself at once. Although the liner lay on one side with the three entrances and emergency airlock underneath, the hole through which he had entered was the only opening. The hull bottom had been crushed by the great impact. Yet the glassite ports and vision shield of the pilot cuddy were unbroken. Standish crawled back along the passage to the officers' quarters. On the well of one of the cabins he found two genithode pistols and a portable ray gun. He realized then that his first move toward self preservation lay in making the space ship livable and impregnable to outside attack. He accomplished the latter by removing two