A thin line ran from a port in the strange ship's deck, just forward of the crystal needle. It was a magnetic anchor on its end, I realized, that had clanged against the rocket. Now a slender figure leapt out of the port.

A man, wearing silver-polished space armor that was close-fitting and graceful. Letting the line run through his gloves, he came flying through the airless void, across to the rocket. I saw his face, beyond the oval vision-panel of his helmet, looking at me curiously.

It might have been the face of some athlete of my own day. It was craggedly handsome, tanned and lean. It was stiff with wonderment. But a quick sympathy warmed the ice-gray eyes of the stranger. He seemed to understand my plight. A silver-clad arm beckoned me to unfasten the valve.

To open the rocket to the frozen emptiness of space! That seemed deadly folly. But death was already inside. My lungs were gasping in vain. My throbbing eyes felt as if bursting out of my head.

With stiff fingers I struggled with the screws that held the long-sealed valve. Billows of darkness rolled down upon me. An agony of fatigue slowed my efforts. But at last the plate slid aside and the last breath of air whispered out.

I collapsed across the rim of the port, fighting black oblivion. I knew that death, after that long, long race, at last had overtaken me. But suddenly something was being pushed down over my head. Fresh clean air was rushing into my face. I could breathe again!

My clearing eyes, through a crystal face-plate, saw what had happened. The silver-armored stranger was beside me—bareheaded! He had given me his own helmet!

Blood was already starting from his breathless nostrils. But he caught my shoulders, dragged me through the valve, hauled us both up the line to the port of the silver ship. We tumbled into a little metal chamber, a valve slammed and I heard the hiss of air.

Leaning against the wall—for an artificial gravity field had gripped us again—the stranger closed his eyes and took several long breaths. The blue of suffocation faded from his rugged face. He grinned at me, and wiped the blood from his mouth.

"Well, stranger," he gasped, "you gave me a surprise! Your ship was listed in our charts as Comet AA 1497 X. We were observing it to correct our bearings, when it began to move!" A tone of awe dulled his whisper. "You must have been aboard a long time."