I stood on the turret-balcony of the Planetara with Captain Carter and Dr. Frank, the ship surgeon, watching the arriving passengers. It was close to the zero hour: the level of the stage was a turmoil of confusion. The escalators, with the last of the freight aboard, were folded back. But the stage was jammed with the incoming passenger baggage: the interplanetary customs and tax officials with their X-ray and Zed-ray paraphernalia and the passengers themselves, lined up for the export inspection. At this height, the city lights lay spread in a glare of blue and yellow beneath us. The individual local planes came dropping like birds to our stage. Thirty-eight passengers for this flight to Mars, but that accursed desire of every friend and relative to speed the departing voyager brought a hundred or more extra people to crowd our girders and bring added difficulty to everybody. Carter was too absorbed in his duties to stay with us long. But here in the turret Dr. Frank and I found ourselves at the moment with nothing much to do but watch. "Think we'll get away on time, Gregg?" "No," I said. "And this of all voyages--" I checked myself, with thumping heart. My thoughts were so full of what Halsey and Carter had told us that it was difficult to rein my tongue. Yet here in the turret, unguarded by insulation, I could say nothing. Nor would I have dared mention the Grantline Moon Expedition to Dr. Frank. I wondered what he knew of this affair. Perhaps as much as I--perhaps nothing. * * * * * He was a thin, dark, rather smallish man of fifty, this ship's surgeon, trim in his blue and white uniform. I knew him well: we had made several flights together. An American--I fancy of Jewish ancestry. A likable man, and a skillful doctor and surgeon. He and I had always been good friends. "Crowded," he said. "Johnson says thirty-eight. I hope they're experienced travelers. This pressure sickness is a rotten nuisance--keeps me dashing around all night assuring frightened women they're not going to die. Last voyage, coming out of the Venus atmosphere--" He plunged into a lugubrious account of his troubles with space-sick voyagers. But I was in no mood to listen. My gaze was down on the spider incline, up which, over the bend of the ship's sleek, silvery body, the passengers and their friends were coming in little groups. The upper deck was already jammed with them. The Planetara, as flyers go, was not a large vessel. Cylindrical of body, forty feet maximum beam, and two hundred and seventy-five feet in overall length. The passenger superstructure--no more than a hundred feet long--was set amidships. A narrow deck, metallic-enclosed, and with large bulls-eye windows, encircled the superstructure. Some of the cabins opened directly onto the deck. Others had doors to the interior corridors. There were half a dozen small but luxurious public rooms. * * * * *