Like tigers they fell upon the Alkebarians, shattering them out of existence with a steady storm of rifle bullets. They met with only a weak resistance for the foe seemed to realize that the fates had played them false. The blue ray had been their promise, and now, like the sword of their ancient god of destruction, it was weaving calmly this way and that, snuffing them into nothingness. The Black Emperor's horde was dissolving, scattering. Battalions of terrified Space Men poured past the rebel chieftain's car, shooting only hurried and ineffective volleys at their enemies, who pressed fiercely upon them. And never did Jan and Shelby miss a chance to spray them with searing bursts of machine-gun fire. There was a lull. The Earthians took the opportunity to look up at the angel of death that was the _Selba_, far above. Most of Alkebar's huge army had already perished, or had dispersed in flight into the desert of space from which it had been recruited. But that the space ship would presently be engaged in a serious fight was evident. * * * * * A determined force which must have numbered a hundred thousand, was hurtling up at it, surrounding the craft with a halo of bursting torpedoes. At the head of the body of Space Men was a huge beast bearing on its back a car similar to Telaba's. Veri-colored signal stars spurted from it. Alkebar himself must be in it directing operations! Coolly the guiding hand aboard the _Selba_ was swinging his dreadful weapon this way and that, annihilating the attackers as one might annihilate a swarm of mosquitoes with a blowtorch. Half of them had already been reduced to those basic, intangible vibrations which constitute all substance. It was terrible, it was glorious; but what could it all mean? Hekalu's ship! The still formidable remnants of the vengeance squadron was seeking to close in--to grapple with the vessel. The _Selba_ was trying to dart out of their way, but the speed of the Space Men, a gift of Nature, was greater than that of this fastest ship designed by man. Grimly, in the face of almost certain death, they kept on. A score or so succeeded in landing on the curving hull, and, like leeches they clung to it. The Atomic Ray arched angrily, cutting a deep swath through those who still sought a hold. And then the gleaming form of the _Selba_ was completely hidden by the swarm of enraged horrors that poured over it. The Atomic Ray was snuffed out. The beholders saw the air lock being pried open, and the Space Men crowding into the interior of the craft. For a second the _Selba_ wobbled crazily, and then her rocket motors ceased to flame. "What are we waiting for? We have friends up there!" Jan cried. Telaba flashed his orders, and the entire cavalcade charged toward the vessel, their guns spewing flame.