Hours later, the last group of looters left the orbit-ship, and the airlock to the Ranger clanged shut. Tom heard the sucking sound of the air-tight seals, then silence. The orbit-ship was empty, its insides gutted, its engines no longer operable. The Ranger hung like a long splinter of silver alongside her hull, poised and ready to move on.

He knew that the time had come. Very soon the blastoff and the accelleration would begin. He had a few moments to find a position of safety, no more.

Quickly, he began scrambling toward the rear of the Ranger's hull, hugging the metal sides, moving sideways like a crab. Ahead, he knew, the viewscreen lenses would be active; if one of them picked him up, it would be quite a jolt to the men inside the ship ... but it would be the end of his free ride.

But the major peril was the blastoff. Once the engines cut off, the ship would be in free fall. Then he could cling easily to the hull, walk all over it if he chose to, with the aid of his boots and hand-pads. But unless he found a way to anchor himself firmly to the hull during blastoff, he could be flung off like a pebble.

He heard a whirring sound, and saw the magnetic mooring cables jerk. The ship was preparing for blastoff. Automatic motors were drawing the cables and grappling plates into the hull. Moving quickly, Tom reached the rear cable. Here was his anchor, something to hold him tight to the hull! With one hand he loosened the web belt of his suit, looped it over a corner of the grappling plate as it pulled in to the hull.

The plate pulled tight against the belt. Each plate fit into a shallow excavation in the hull, fitting so tightly that the plates were all but invisible when they were in place. Tom felt himself pulled in tightly as the plate gripped the belt against the metal, and the whirring of the motor stopped.

For an instant it looked like the answer. The belt was wedged tight ... he couldn't possibly pull loose without ripping the nylon webbing of the belt. But a moment later the motor started whirring again. The plate pushed out from the hull a few inches, then started back, again pulling in the belt....

A good idea that just wouldn't work. The automatic machinery on a spaceship was built to perfection; nothing could be permitted to half-work. Tom realized what was happening. Unless the plate fit perfectly in its place, the cable motor could not shut off, and presently an alarm signal would start flashing on the control panel.

He pulled the belt loose, reluctantly. He would have to count on his boots and his hand-pads alone.

He searched the rear hull, looking for some break in the polished metal that might serve as a toehold. To the rear the fins flared out, supported by heavy struts. He made his way back, crouching close to the hull, and straddled one of the struts. He jammed his magnetic boots down against the hull, and wrapped his arms around the strut with all his strength.