do, our chances of catching up with him before the ship berths should be reasonably good."

The captain paused, then went on quickly: "We'll get him eventually. You can be sure of that. He'll never get past the inspection each of you will have to undergo when we reach the Station. But if we catch him before we reach the Station, you'll be spared an investigative ordeal distinctly on the rugged side."

Corriston was suddenly aware that he was being stared at. Everyone was staring at him.

"My God!" the Captain cried out, staring the hardest of all. "Where did you get that wound? Who attacked you? And what were you doing in my cabin?"

Corriston walked up to the Captain and said in a voice that trembled a little. "May I talk to you privately, sir? What I have to say won't take long."

"Why not?" Sanders demanded. "That uniform you're wearing makes it mandatory. All right, come back into my cabin."

They went back into the cabin. The captain shut the door and turned to face Corriston with a shocked concern in his stare.

"You've had it rough, Lieutenant. I can see that."

"Plenty rough," Corriston conceded. "But it's not myself I'm worried about."

"Did you know that a man has just been murdered?"

"I know," Corriston said.

"With a poisoned barb. A Martian barb. It's a plant found only on Mars. We have him stretched out on a table in the sick bay now. But he isn't sick; he's a corpse. Tell me something, Lieutenant, did you just tangle with the man who did it?"

"I think so," Corriston said. "In fact, I'd stake my commission on it."

"I see. Well, you'd better tell me about it. Tell me everything."

Corriston told him.

The captain was silent for a long moment. Then he said, "But we've no Miss Ramsey on the passenger list. And I certainly didn't invite her to drink a toast with me in my cabin. Are you sure of your facts, Lieutenant?"

Corriston's jaw fell open. He stared at the captain in stunned disbelief. "Of course I'm sure. Why should I lie to you?"

"How should I know? It's unfair to ask me that. If Ramsey's daughter was on this ship, you can rest assured I'd have known about it. After all, Lieutenant—"

"But she was on board and you didn't know. Isn't that obvious? Look, she was traveling incognito. The trip to the Station takes only five hours. Perhaps in so short a trip—"

"No 'perhaps' about it. I'd have known."

"But she is on board, I tell you. I talked to her. I talked to Clakey. Don't make me go over the whole thing again. We've got to find her. Ramsey's enemies would stop at nothing. I'm afraid to think of what they might do to his daughter!"

"Nothing will happen to his daughter. She's on Earth right this minute in her father's house, as safe as any girl that wealthy can ever be. Lieutenant, listen to me. I've got a great deal of respect for that uniform you're wearing. Don't make me lose it. When you come to me with a story like that—"

"All right. You don't believe me. Will you check the passenger list, just to be sure?"

"I'll do more than that, Lieutenant. I'll assemble all of the passengers and check them off personally. I'll give you an opportunity to look them over while I'm doing it. Later you can ask them as many questions as you wish. There'll be a murderer among them, but that shouldn't disturb you too much. You've already met. Perhaps you can identify him for us. Ask each of the men who made a non-existent Miss Ramsey disappear and the one who turns pale will be our man."

Suddenly the captain reddened. "I'm sorry, Lieutenant, I didn't mean to be sarcastic. But a murder on my ship naturally upsets me. I'll be completely frank with you. There's a very remote possibility that Miss Ramsey actually is on board without my knowledge. She hasn't had much publicity. I believe I've only seen one photograph of her, one taken several years ago. But you've got to remember that a captain is usually the first to get wind of such things. It comes to him by a kind of grapevine. She's a golden girl—actually the goldenest golden girl on Earth."

4

Now Corriston was in a steel-walled cell and the captain's voice seemed only a far-off echo sympathizing with him.

And it was an echo, for the captain was gone and he would probably never see him again. It was all very simple—that part of it—all very clear. The captain had faithfully kept his word. The captain hadn't let him down. But any man can end up a prisoner when everyone disbelieves him and he has no way of proving that he is telling the truth.

It was hard to believe that a day and a night had passed, and that the Captain had kept his word and gone ahead with the roll call. It was even harder to believe that he, Corriston, was no longer on the ship, but in a sanity cell on the Space Station, and that the ship was traveling back toward Earth.

He shut his eyes, and the events of the past thirty hours unrolled before him with a nightmare clarity, and yet with all of the monstrous distortions which a nightmare must of necessity evoke.

Darkness and time and space. And closer at hand the frowns of forthright, honest men appalled by mental abnormality in a new recruit, an officer with a steel-lock determination to keep the truth securely guarded and safe from all distortion.

There had come the tap on his shoulder and a stern voice saying: "You'd better come with us, Lieutenant." He had just told the captain the whole horrible story. He had not been believed.

"Tell me about it," said the recruit in the bunk opposite Corriston. "It will help you to talk. Remember, we're not prisoners. We mustn't think of ourselves as prisoners. We can go out and exercise. We can walk around the Station for a half-hour or so. We've only got to promise we'll come back and lock ourselves in. They trust us. It could happen to anyone.

"Space-shock. Not a fancy word at all. I'm getting over it; you've a certain distance to go. Or so they say. But we're still in very much the same boat and talking always helps. Talk to me, Lieutenant, the way you did last night."

Corriston looked at the pale youth opposite him. He had close-cropped hair and friendly blue eyes, and he seemed a likeable enough lad. He was Corriston's junior by several years. But there was an aura of neuroticism about him that made Corriston uneasy. But hell, why shouldn't he get it off his chest. Talking just might help.

"It's true," Corriston said. "Every word of it."

"I believe you, Lieutenant. But quite obviously they didn't. Why not strike a compromise. Say I'm one-tenth wrong in believing you and they're nine-tenths right in not believing you. That means there may be some little quirk in what happened to you that doesn't quite fit into the normal pattern. Put that down to space-shock—a mild case of it. I'm not saying you have it, but you could have it."

The kid was grinning now, and Corriston had to like him.

"Okay," he said. "You can believe this or not. The captain lined all of the passengers up and checked them off by their cabin numbers. I didn't see her. Do you understand? She just wasn't there! I thought I recognized two of the women who had come out of the ladies' lounge, but I couldn't even be sure of that. One of the two denied ever having stepped inside the lounge, and the other was vague about it."

"I see."

"The captain really sailed into me for a moment, lost his temper completely. 'A fine officer you are, Lieutenant. It's painful to be on the same ship with the kind of officers the training schools turn out when the Station finds itself short of personnel. Is the Station planning to trust ships' clearance to hallucinated personnel?

"'All right, you talked to a girl—some girl. She didn't even tell you she was Ramsey's daughter; Clakey told you. And he's dead. Not only is he dead, he wasn't listed on the passenger list as Clakey at all. His name was Henry Ewers. I