"All but," rapped Hoskins. He scooped up the oxygen bottle and disappeared.

Paresi said, "We'll tell them something if we _don't_ answer."

The Captain set his jaw. "We do what we can, Nick. We do the best we can. Got any better ideas?"

Paresi shrugged easily and smiled. "Just knocking, skipper. Knock everything. Then what's hollow, you know about."

"I should know better than to jump salty with you," said the Captain, all but returning the doctor's smile. "Johnny. Hoskins. Prepare for exploratory patrol."

"I'll go," said Paresi.

"Johnny goes," said the Captain bluntly, "because it's his first trip, and because if he isn't given something to do he'll bust his adrenals.

Hoskins goes, because of all of us, the Engineer is most expendable.

Ives stays because we need hair-trigger communications. I stay to correlate what goes on outside with what goes on inside. You stay because if anything goes wrong I'd rather have you fixing the men up than find myself trying to fix you up." He squinted at Paresi. "Does that knock solid?"

"Solid."

"Testing, Johnny," Ives said into a microphone. Johnny's duplicated voice, from the open face-plate of his helmet and from the intercom speaker, said, "I hear you fine."

"Testing, Hoskins."

"If I'd never seen you," said the speaker softly, "I'd think you were right here in the suit with me." Hoskins' helmet was obviously b.u.t.toned up.

The two men came shuffling into the cabin, looking like gleaming ghosts in their chameleon-suits, which repeated the color of the walls.

"Someday," growled Johnny, "there'll be a type suit where you can scratch your--"

"Scratch when you get back," said the Captain. "Now hear this. Johnny, you can move fastest. You go out first. Wait in the airlock for thirty seconds after the outer port opens. When Ives gives you the beep, jump out, run around the bows and plant your back against the hull directly opposite the port. Hold your blaster at the ready, aimed down--you hear me? _Down_, so that any observer will know you're armed but not attacking. Hoskins, you'll be in the lock with the outer port open by that time. When Johnny gives the all clear, you'll jump out and put your back against the hull by the port. Then you'll both stay where you are until you get further orders. Is that clear?"

"Aye."

"Yup."

"You're covered adequately from the ship. Don't fire without orders.

There's nothing you can get with a blaster that we can't get first with a projector--unless it happens to be within ten meters of the hull and we can't depress to it. Even then, describe it first and await orders to fire except in really extreme emergency. A single shot at the wrong time could set us back a thousand years with this planet. Remember that this ship isn't called _Killer_ or _Warrior_ or even _Hero_. It's the Earth Ship _Amba.s.sador_. Go to it, and good luck."

Hoskins stepped back and waved Johnny past him. "After you, Jets."

Johnny's teeth flashed behind the face-plate. He clicked his heels and bowed stiffly from the waist, in a fine burlesque of an ancient courtier. He stalked past Hoskins and punched the b.u.t.ton which controlled the airlock.

They waited. Nothing.

Johnny frowned, jabbed the b.u.t.ton again. And again. The Captain started to speak, then fell watchfully silent. Johnny reached toward the b.u.t.ton, touched it, then struck it savagely. He stepped back then, one foot striking the other like that of a clumsy child. He turned partially to the others. In his voice, as it came from the speaker across the room, was a deep amazement that rang like the opening chords of a prophetic and gloomy symphony.

He said, "The port won't open."

II

_The extremes of mysticism and of pragmatism have their own expressions of worship. Each has its form, and the difference between them is the difference between_ deus ex machina _and_ deus machina est.

--_E. Hunter Waldo_

"Of course it will open," said Hoskins. He strode past the stunned pilot and confidently palmed the control.

The port didn't open.

Hoskins said, "Hm?" as if he had been asked an inaudible question, and tried again. Nothing happened. "Skipper," he said over his shoulder, "Have a quick look at the meters behind you there. Are we getting auxiliary power?"

"All well here," said Anderson after a glance at the board. "And no shorts showing."

There was a silence punctuated by the soft, useless clicking of the control as Hoskins manipulated it. "Well, what do you know."

"It won't work," said Johnny plaintively.

"Sure it'll work," said Paresi swiftly, confidently. "Take it easy, Johnny."

"It won't work," said Johnny. "It won't work." He stumbled across the cabin and leaned against the opposite bulkhead, staring at the closed port with his head a little to one side as if he expected it to shriek at him.

"Let me try," said Ives, going to Hoskins. He put out his hand.

"_Don't!_" Johnny cried.

"Shut up, Johnny," said Paresi.

"All right, Nick," said Johnny. He opened his face plate, went to the rear bulkhead, keyed open an acceleration couch, and lay face down on it. Paresi watched him, his lips pursed.

"Can't say I blame him," said the Captain softly, catching Paresi's eye.

"It's something of a shock. This shouldn't _be_. The safety factor's too great--a thousand per cent or better."

"I know what you mean," said Hoskins. "I saw it myself, but I don't believe it." He pushed the b.u.t.ton again.

"I believe it," said Paresi.

Ives went to his desk, clicked the transmitter and receiver switches on and off, moved a rheostat or two. He reached up to a wall toggle, turned a small air-circulating fan on and off. "Everything else seems to work,"

he said absently.

"This is ridiculous!" exploded the Captain. "It's like having your keys home, or arriving at the theater without your tickets. It isn't dangerous--it's just stupid!"

"It's dangerous," said Paresi.

"Dangerous how?" Ives demanded.

"For one thing--" Paresi nodded toward Johnny, who lay tensely, his face hidden. "For another, the simple calculation that if nothing inside this ship made that control fail, something outside this ship did it. And _that_ I don't like."

"That couldn't happen," said the Captain reasonably.