He was silent a moment, regarding the Woolly. "But we'd better get him out of here." He gestured and frowned at Big Bill, and by sign language and telepathy made the great creature understand. Big Bill retreated to the airlock, fumbled with its controls, and rolled out into the lock. The clang of the outer door brought an involuntary sigh from Leila. One mitten-like hand had left a red smear on the opening lever.... "What happened?" inquired Paige at last. "I don't know," said Leila confusedly. Her knees had gone boneless; she sank into a chair. "It was just sitting against the wall there--" she pointed "--and then it got up and killed him." She hesitated. "Paul seemed to be trying to control it ... but I guess he couldn't." Paige laid the gun carefully on the desk, walked deliberately to the couch, unfolded a blanket, and went to spread it over Paul Gedner and his dream of an Empire of Saturn. The blanket could not quite cover everything. * * * * * Big Bill rolled ponderously through the inky Phoebean night, his huge red eyes picking an aimless path by the starlight. There was a nagging emptiness in his little mind--a vacuum left by the vanishing of Gedner's dominant will. The vanishing Big Bill could not explain. But he knew that he had had no thoughts that were not also those of the godlike master, no desires that were not the reflection of Gedner's.... Dimly he remembered the final scene in the humans' dwelling. There had been a strange storm of unprecedented emotions, and Big Bill too had felt a moment of overpowering desire for the slight fair-headed human who had come in the rocket.... And then came an instant of blind, alien fury to which Big Bill could give no name or meaning, and whose deeds he could not remember. Nor could he know that, mirroring Gedner's passions, he had only felt and acted as the man would have if he, instead of the Woolly, had been the onlooker. He had gone mad with jealousy.