The chattering stopped after a while. Perhaps like human pilots they were accustomed to sleeping during periods of coasting. At any rate, Jason had a chance to relax from his first state of anxious vigilance. After several hours of silence, a sudden babble of chattering woke him to alertness. He deduced that some object had been sighted, but as he had no radar detector he was blind to everything outside visual range.

Watching anxiously he saw flickers of flame from nose-jets. Imitating the maneuvers of his neighbors, he managed to keep in formation while the ships turned through ninety degrees. Immediately after this turnabout the squadron formed itself into line astern. Jason did not need to wonder what was happening; some group of earth ships must have come into range, some squadron which had no business to be so far out, which ought not to be operating in this sector at all. Thus he found himself in the middle of an enemy formation rushing to attack his fellow humans.

There was nothing he could do about it without spoiling the plan; he must stay with the Jackoes, and hope that none of his friends got in position to take a shot at him.

Things began to happen with bewildering speed. In a moment seven familiar-looking shapes were in sight, rushing towards him. Jason knew the Jackoes always tried to maintain their line-astern formation so he kept his eye on the ship ahead of him. The two formations met. Jason’s field of vision was filled with wheeling ships and flaring jets, and the stabbing blue flame of D-rays. He saw the Jacko leader blow up. He saw—a thing he had often heard of but never seen before —a Jacko turn out of line and destroy one of his own companions who had been seriously damaged by gunfire. Then, how it came about he could not say, but he found himself pursuing an earth ship.