Dworn picked himself up from among the rocks where he had been flung by the shock-wave of its near passage, and was knocked sprawling again by the earthquake impact of a second drone that thundered headlong into the earth a few hundred feet away, burying itself under a crater like that of a huge bomb. He glimpsed a third craft going down to the west of them, just missing the rim of the Barrier cliffs and plunging out of sight without a sign of coming out of its dive. Those which remained in the air were flying aimlessly. Two of them passed over side by side, gradually converging until, a couple of miles away, they locked wings and went spinning down toward the horizon in a deadly embrace. On the ground, a like confusion had befallen the wingless workers. Their scurrying suddenly lost all its busy, planned efficiency. Some buzzed round and round in drunken circles; others ran head-on into one another, or tumbled into shell-holes to lie futilely spinning their wheels. A hush descended on the field of battle. After the fury of bombardment and counterattack, the relative silence was deafening. Dworn got to his feet for the second time and helped Qanya up; he grinned exultantly at her, oblivious of a trickle of blood running down his face where a rock-splinter had hit. The scorpion lying nearest the foot of the slope opened its hatch-cover. A man climbed out, clasped hands together over his head and stamped on the gray monster's back in an awkward impromptu victory-dance. Cheers rang faintly from far off down the silenced firing-line. Then--the spell of premature triumph was rudely shattered. From the direction of the breached and smoking buildings, there rose yet again the soughing roar of jet engines gathering speed. Onto the runway to the west--the only one which the workers had managed to clear before their central control was knocked out--came waddling an enormous winged thing. Its multiple engines screamed up to a frenzied pitch, and it rolled out along the strip at increasing velocity. Its huge wheels narrowly missed a dead fighter slewed across the way. Its tail went up. Naturally, the queen ships wouldn't be dependent on the nerve-center of the hive that had spawned them; for each of them carried within itself the full-grown robot brain, the nucleus of a new hive.... Shooting began again raggedly, the gunners caught unawares. Perhaps the great machine was hit--but to stop it would take more than one or two hits.