The space-ship Viking—two hundred feet of gleaming metal and polished duralite—lay on the launching platform of New York City's municipal airport. Her many portholes gleamed with light. She was still taking on rocket fuel from a tender, but otherwise all the final stores were aboard. Her helicopters were turning over slowly, one at a time, as they were tested. In the Viking's upper control room Gerry Norton and Steve Brent made a final check of the instrument panels. Both men wore the blue and gold uniform of the Interplanetary Fleet. Fatigue showed on both their faces, on Steve's freckled pan and on Gerry Norton's lean face. Gerry in particular had.