_And we're hurtling toward Earth--to bring these parasitic thought-things to feed upon the minds of mankind. The ship is filled with them. Everywhere I go, my Thing whispers to those bodiless ones promising, promising, promising! Thought-conquerors ... the power of thought had brought Man to the pinnacle of destiny. Now these--these_ Things--_were stealing his birthright!..._ "Do you see now how impossible it is, Earthman? We Arkkhans are so vastly superior to you, there is nothing you can do but bow to us? And you will be unutterably happy," his Thing thought. Into Kent Knight's mind came the soft, sweet face of Mary Jo. _Mary Jo._ The thought was a caress--warm and tender as the touch of her hand. Mary Jo, whose warmth and brightness were life to him--even now when he had lost her forever. He was remembering.... He'd known it for a long time, ever since the night when the big, flame-thatched space captain had swerved gracefully over to their table and said, "So this is your Faith, Kent. You're right, she's magnificent. No wonder you're the best damn spacer in the system. With a Faith like that, you couldn't help it." He knew it when she leaned almost unconsciously toward him, as if she feared Bob Mallory's mocking green eyes, his lean, almost hawk-like face. And as the weeks wore on, the memory stayed with her for she would ask this and that about Mallory. And he would answer. He knew for sure the second time the two met. They fought--not in just words, but with their eyes, with movements of their bodies. And he knew that he could not fight that lightning with the slow-burning flame that was his love. So he said, and with the memory came the pain again, "You love him quite a bit, don't you." Her blue eyes had looked startled at first, then almost soft, then harried, "I guess I do, Kent. I'm sorry." "No need to be sorry," he said. "This sort of thing happens all the time. I don't love you so much that life would stop without you. Besides, I like Bob, he's a good joe." I kissed her, he thought, and I knew I was a damn liar, or why did I go out and try to drink the distilleries dry? Sure, it was a hurt pride--but I still kind of like Mary Jo. The last words he said came back. "This is it, then, Mary Jo. Good-night, good luck, goodbye." "I will give her to you, Kent Knight," the Thing said. "Your love will be the lightning. You can hold her in your arms, feel the warmth and excitement of her, knowing that she is yours. Nothing can take her from you." For a moment, Kent Knight was tempted to let that little bit of mind that still was his be swallowed up by the Thing. But he remembered in time. "Like Captain Hansen's fountain of youth?" his mind asked, and he laughed. * * * * * Like a magnified echo to his laugh came the excited clamor of the alarm bells. The signal board in the mess began to pulse redly. Approaching mass! Asteroid, wandering star, spaceship? Knight waited.