It held, though, to his relief. He was trailing behind the ship. Eagerly he seized the handle of the reel; began to wind up the mile of thin wire. Half an hour later, Thad's suited figure bumped gently against the shining hull of the rocket. He got to his feet, and gazed backward into the starry gulf, where his sphere of iron had long since vanished. "Somebody is going to find himself a nice chunk of metal, all welded together and equipped for rocket navigation," he murmured. "As for me--well, I've simply _got_ to run this tub to Mars!" He walked over the smooth, refulgent hull, held to it by magnetic soles. Nowhere was it broken, though he found scars where small meteoric particles had scratched the brilliant polish. So no meteor had wrecked the ship. What, then, was the matter? Soon he would know. The _Red Dragon_ was not large. A hundred and thirty feet long, Thad estimated, with a beam of twenty-five feet. But her trim lines bespoke design recent and good; the double ring of black projecting rockets at the stern told of unusual speed. A pretty piece of salvage, he reflected, if he could land her on Mars. Half the value of such a ship, unharmed and safe in port, would be a larger sum than he dared put in figures. And he must take her in, now that he had lost his own rocket! He found the life-tubes, six of them, slender, silvery cylinders, lying secure in their niches, three along each side of the flier. None was missing. So the crew had not willingly deserted the ship. He approached the main air-lock, at the center of the hull, behind the projecting dome of the bridge. It was closed. A glance at the dials told him there was full air pressure within it. It had, then, last been used to enter the rocket, not to leave it. * * * * * Thad opened the exhaust valve, let the air hiss from the chamber of the lock. The huge door swung open in response to his hand upon the wheel, and he entered the cylindrical chamber. In a moment the door was closed behind him, air was hissing into the lock again. He started to open the face-plate of his helmet, longing for a breath of air that did not smell of sweat and stale tobacco smoke, as that in his suit always did, despite the best chemical purifiers. Then he hesitated. Perhaps some deadly gas, from the combustion chambers.... Thad opened the inner valve, and came upon the upper deck of the vessel. A floor ran the full length of the ship, broken with hatches and companionways that gave to the rocket rooms, cargo holds, and quarters for crew and passengers below. There was an enclosed ladder that led to bridge and navigating room in the dome above. The hull formed an arched roof over it.