Haddix's laughter purred over the intercom. "Uh-uh," he said. "The stresses in a space-warp are tremendous. Water has no shape to lose, so it doesn't matter. A man would be mangled. Well, are you ready, Mr. Tremaine?" "I guess so." "Fine. Just point yourself in the direction of the warp-station, unmagnetize your boots and switch on your shoulder jets. Once you get the hang of it, it's a cinch. Here we go." Ahead of him, Alan saw Haddix's form suddenly lift from the hull of the spaceship and rocket up toward the warp-station. Alan followed him, feeling utterly no sensation of movement after the initial acceleration. * * * * * A featureless black globe several hundred yards in diameter, the warp station floated toward them. Following Haddix's lead, Alan alighted on his hands, cutting his shoulder jets and cart-wheeling into an upright position. The warp-station, he knew, was merely a terminal point for the space-warp itself. Untended, it housed the tremendous atomic power plant which unfolded the water on the Martian end of the warp from sub-space to normal space. "As you can see," Haddix said, "the station is working. But there's no water." Alan could feel the pulsing of great machinery underfoot. But the black tube of sub-space, yawning awesomely half a hundred feet to his left, was empty. "Want to take a look?" Haddix demanded. Alan nodded through the glassite helmet of his space suit, then fell into dragging, magnetized step beside Haddix. Soon they approached the lip of the sub-space tube, where sub-space intersected normal space in a fifty foot wide channel. "It doesn't look dangerous," Alan said. "For water, it's not. The pressure would crush a man to jelly." Alan peered over the edge. Below him perhaps a dozen feet, a white line had been painted. Over it in stark white letters was the word CAUTION. Beyond that point, apparently, the actual space-warp began. "Look out!" Alan shouted. "What are you trying to do?" Haddix was leaning against him, their two bulky suits in sudden, dangerous contact. Alan could feel himself slipping over the edge. Yelling now, his own voice deafening him inside the glassite helmet, Alan groped with clumsy, gauntletted hands for Haddix. He clutched the shoulder of the man's spacesuit, then felt himself tumbling over the edge into the tube. There was a jolting sensation above him. He was sliding down the inflated body of Haddix's spacesuit, sliding, sliding. He wrapped his arms about the legs of the suit and clung there. Below his dangling feet was the white line and the word CAUTION painted there. Immediately below that, the space-warp itself. "Let go of me!" Haddix screamed. "You'll kill us both." Alan looked up. Haddix was clinging to the lip of the tube with both hands. Suddenly, Haddix began rocking back and forth in an attempt to dislodge Alan. "Don't try it," Alan said. "All I've got to do is yank at your legs a little harder and we'll both fall down there."