"Keep them covered, Grim," Hilary said sharply. "I'll take care of this fellow personally."

He walked straight across the room for the Cor, eyes blazing, index finger on trigger. The Cor, fear staring out of his lidless eyes, backed slowly away from the approaching death. There was a hushed silence.

"I'll tell, I'll tell!" the Cor screamed, as the relentless weapon almost touched his paunchy stomach.

"I thought you would," Hilary said grimly, not for an instant relaxing the pressure against the trigger. "If you value your worthless hide, you'd better talk, and talk fast. What switch reverses the machine, to bring on rain? If you are wise, you won't try to fool me."

The wretch almost stumbled in his eagerness. "By the gray soil of Mercury I'll tell you the truth." His arm flung up, pointing. "That knob over there controls the—"

Hilary never heard the rest. There was a crash at the other end of the laboratory. One of the Mercutians, tired of keeping his arms high extended, had attempted to rest his huge bulk against a laboratory table. It went over with a splintering crash of glassware.


ilary whirled around to face the noise. As he did so, the Cor seized his opportunity. His right arm dropped to his side, jerked up his sun-tube. Hilary heard Grim's warning cry, tried to pivot back again. But Grim beat him to it. The dynol pistol exploded sharply; the flaming pellet caught the Cor square in his side. There was a dull explosion and the Cor was torn violently into bits. He dropped, a mass of shapeless blobs.

But now hell had broken loose. The Mercutians were not cowards. At the moment of the diversion, every one of them had gone for his sun-tube. A flame streaked close to Hilary's head, shivered the opposite wall into molten fragments. He ducked behind a table and fired. A Mercutian threw up his hands, staggered and pitched forward heavily. Grim's dynol bullets whined in their passage, spattered the laboratory with flying blobs of flesh. They did terrible execution. Hilary's automatic spat its leaden hail.