The slight bodies of the Xoranians seemed as impervious to bullets and missiles as though armor-plated. The frantic defense of the beleaguered people of the doomed planet caused hardly a casualty in the Xoranian ranks. The attack of the Xoranians was hideously effective. Clouds of dense yellow fog belched from countless projectors in the hands of the bluish-gray hosts, and beneath that deadly miasma all animal and plant life on the doomed planet was crumbling, dying, and rotting into a liquid slime. Then even the slime was swiftly obliterated, and the Xoranians were left triumphant upon a world starkly desolate. "That was one of the minor planets in the swarm that make up the solar system of the sun that your astronomers call Canopus," Arlok explained. "Our first task in conquering a world is to rid it of the unclean surface scum of animal and plant life. When this noxious surface mold is eliminated, the planet is then ready to furnish us sustenance, for we Xoranians live directly upon the metallic elements of the planet itself. Our bodies are of a substance of which your scientists have never even dreamed--deathless, invincible, living metal!" * * * * * Arlok again twirled the control of the apparatus and the scene was shifted back to the planet of Xoran, this time to the interior of what was apparently a vast laboratory. Here scores of Xoranian scientists were working upon captives who were pathetically like human beings of Earth itself, working with lethal gases and deadly liquids as human scientists might experiment upon noxious pests. The details of the scene were so utterly revolting, the tortures that were being inflicted so starkly horrible, that Leah and Gordon sank back in their chairs sick and shaken. Arlok snapped off a switch, and the green light in the tubes died. "That last scene was the laboratory to which I shall send you two presently," he said callously as he started back across the room toward them. Gordon lurched to his feet, his brain a seething whirl of hate in which all thought of caution was gone as he tensed his muscles to hurl himself upon that grim monstrosity from the bleak and desolate realm of Xoran. Then he felt Leah tugging surreptitiously at his right hand. The next moment the bulk of something cold and hard met his fingers. It was the revolver. Leah had secured it while Arlok was busy with his inter-dimensional televisor. Arlok was rapidly approaching them. Gordon hoped against hope that the menace of that deadly tentacle might be diverted for the fraction of a second necessary for him to get in a crippling shot. Leah seemed to divine his thought. She suddenly screamed hysterically and flung herself on the floor almost at Arlok's feet. * * * * *