Clawly's body felt like a sack of water. He could not take his eyes off the thing behind the desk. It looked more like a burnt mummy than a burnt man. By some chance the blue flame had spared the high forehead, giving the face a grotesquely splotched appearance. The outer door was opened, but Clawly did not turn or otherwise move. He heard a hissing inhalation--presumably when the newcomer saw the hideous corpse--but the newcomer had to come round in front before Clawly saw and recognized--or rather, partly recognized--him. And even then Clawly felt no reaction of astonishment or relief, or any reaction he might have expected to feel. The incredible scene he had just witnessed lingered like an after-image, and other thoughts and feelings refused to come into focus. The dead body of Oktav dominated his vision and his mind, as if emanating a palpable aura that blurred everything else. The newcomer noted the incompleteness of Clawly's recognition, for he said, "Yes, I'm Thorn, but, I think you know, not the Thorn who was your friend, although I am inhabiting his body." To Clawly the words seemed to come from a great distance; he had to fight an insidious lethargy to hear them at all. They continued, "That Thorn is taking my place in the world--and three days ago I rejoiced to think of the suffering he would undergo there. Fact is, I was your enemy--his and yours--but now I'm not so sure. I'm even beginning to think we may be able to help each other a great deal. But I'm responsible for more lives than just my own, so until I'm sure of you, I daren't take any chances. That's the reason for this." And he indicated the small tubular object in his hand, which seemed to be the dismantled main propulsion unit of a suit of flying togs--a crude but effective short-range blaster. Clawly began to take him in, though it was still hard for him to see anything but the thing behind the desk. Yes, it was Thorn's face, all right, but with a very uncharacteristic expression of stubborn and practical determination. The newcomer continued, "I've been following you because Thorn's memoranda tapes showed that you and he were working together in what seemed to be an effort to warn this world of its danger. But lately things have been happening that make me doubt that--things I want explained. What's this Martian invasion? Is it real? Or an attempt to rouse your world into a state of preparedness? Or a piece of misdirection designed to confuse the issue and make the Servant's invasion easier? Then, why did you come here, and who is this creature, and how did he die?" With a gesture of repugnance, he indicated the body of Oktav. "What I overheard reawakened my old suspicion that there's somebody behind this business of duplicate worlds, somebody who's making a profit from it, somebody--"