Arlok stopped in obvious wonder and bent over Leah. Gordon took instant advantage of the Xoranian's diverted attention. He whipped the revolver from behind him and fired point-blank at Arlok's unprotected head. The bullet struck squarely, but Arlok was not even staggered. A tiny spot of bluish-gray skin upon his oval skull gleamed faintly for a moment under the bullet's impact. Then the heavy pellet of lead, as thoroughly flattened as though it had struck the triple armor of a battleship, dropped spent and harmless to the floor. Arlok straightened swiftly. For the moment he seemed to have no thought of retaliating with his deadly tentacle. He merely stood there quite still with one thin arm thrown up to guard his glowing eyes. Gordon sent the remainder of the revolver's bullets crashing home as fast as his finger could press the trigger. At that murderously short range the smashing rain of lead should have dropped a charging gorilla. But for all the effect Gordon's shots had upon the Xoranian, his ammunition might as well have been pellets of paper. Arlok's glossy hide merely, glowed momentarily in tiny patches as the bullets struck and flattened harmlessly--and that was all. His last cartridge fired, Gordon flung the empty weapon squarely at the blue monstrosity's hideous face. Arlok made no attempt to dodge. The heavy revolver struck him high on the forehead, then rebounded harmlessly to the floor. Arlok paid no more attention to the blow than a man would to the casual touch of a wind-blown feather. Gordon desperately flung himself forward upon the Xoranian in one last mad effort to overwhelm him. Arlok dodged Gordon's wild blows, then gently swept the Earth man into the embrace of his thin arms. For one helpless moment Gordon sensed the incredible strength and adamantine hardness of the Xoranian's slender figure, together with an overwhelming impression of colossal weight in that deceptively slight body. * * * * * Then Arlok contemptuously flung Gordon away from him. As Gordon staggered backward, Arlok's tentacle lashed upward and levelled upon him. Its twin tips again glowed brilliant green and livid blue. Instantly every muscle in Gordon's body was paralyzed. He stood there as rigid as a statue, his body completely deadened from the neck down. Beside him stood Leah, also frozen motionless in that same weird power.