telling what a few weeks digging might turn up. Murphy considered his expense account. Shifkin was the obstacle.

There'd be tremendous prestige and publicity for Know Your Universe! if Murphy uncovered a tomb, a library, works of art. The Sultan would gladly provide diggers. They were a sturdy enough people; they could make quite a showing in a week, if they were able to put aside their superstitions, fears and dreads.

Murphy sized one of them up from the corner of his eye. He sat on a sunny slab of rock, and if he felt uneasy he concealed it quite successfully. In fact, thought Murphy, he appeared completely relaxed. Maybe the problem of securing diggers was a minor one after all....

And here was an odd sidelight on the Singhalûsi character. Once clear of the valley the man openly wore his shirt, a fine loose garment of electric blue, in defiance of the Sultan's edict. Of course out here he might be cold....

Murphy felt his own skin crawling. How could he be cold? How could he be alive? Where was his space-suit? He lounged on the rock, grinning sardonically at Murphy. He wore heavy sandals, a black turban, loose breeches, the blue shirt. Nothing more.

Where were the others?

Murphy turned a feverish glance over his shoulder. A good three miles distant, bounding and leaping toward Singhalût, were twenty desperate figures. They all wore space-suits. This man here ... A sjambak? A wizard? A hallucination?

The creature rose to his feet, strode springily toward Murphy. He carried a crossbow and a sword, like those of Murphy's fleet-footed guards. But he wore no space-suit. Could there be breathable traces of an atmosphere? Murphy glanced at his gauge. Outside pressure: zero.

Two other men appeared, moving with long elastic steps. Their eyes were bright, their faces flushed. They came up to Murphy, took his arm. They were solid, corporeal. They had no invisible force fields around their heads.

Murphy jerked his arm free. "Let go of me, damn it!" But they certainly couldn't hear him through the vacuum.

He glanced over his shoulder. The first man held his naked blade a foot or two behind Murphy's bulging space-suit. Murphy made no further resistance. He punched the button on his camera to automatic. It would now run for several hours, recording one hundred pictures per second, a thousand to the inch.

The sjambaks led Murphy two hundred yards to a metal door. They opened it, pushed Murphy inside, banged it shut. Murphy felt the vibration through his shoes, heard a gradually waxing hum. His gauge showed an outside pressure of 5, 10, 12, 14, 14.5. An inner door opened. Hands pulled Murphy in, unclamped his dome.

"Just what's going on here?" demanded Murphy angrily.

Prince Ali-Tomás pointed to a table. Murphy saw a flashlight battery, aluminum foil, wire, a transistor kit, metal tubing, tools, a few other odds and ends.

"There it is," said Prince Ali-Tomás. "Get to work. Let's see one of these paralysis weapons you boast of."

"Just like that, eh?"

"Just like that."

"What do you want 'em for?"

"Does it matter?"

"I'd like to know." Murphy was conscious of his camera, recording sight, sound, odor.

"I lead an army," said Ali-Tomás, "but they march without weapons. Give me weapons! I will carry the word to Hadra, to New Batavia, to Sundaman, to Boeng-Bohôt!"

"How? Why?"

"It is enough that I will it. Again, I beg of you ..." He indicated the table.

Murphy laughed. "I've got myself in a fine mess. Suppose I don't make this weapon for you?"

"You'll remain until you do, under increasingly difficult conditions."

"I'll be here a long time."

"If such is the case," said Ali-Tomás, "we must make our arrangements for your care on a long-term basis."

Ali made a gesture. Hands seized Murphy's shoulders. A respirator was held to his nostrils. He thought of his camera, and he could have laughed. Mystery! Excitement! Thrills! Dramatic sequence for Know Your Universe! Staff-man murdered by fanatics! The crime recorded on his own camera! See the blood, hear his death-rattle, smell the poison!

The vapor choked him. What a break! What a sequence!

"Sirgamesk," said Howard Frayberg, "bigger and brighter every minute."

"It must've been just about in here," said Catlin, "that Wilbur's horseback rider appeared."

"That's right! Steward!"

"Yes, sir?"

"We're about twenty thousand miles out, aren't we?"

"About fifteen thousand, sir."

"Sidereal Cavalry! What an idea! I wonder how Wilbur's making out on his superstition angle?"

Sam Catlin, watching out the window, said in a tight voice, "Why not ask him yourself?"

"Eh?"

"Ask him for yourself! There he is—outside, riding some kind of critter...."

"It's a ghost," whispered Frayberg. "A man without a space-suit.... There's no such thing!"

"He sees us.... Look...."

Murphy was staring at them, and his surprise seemed equal to their own. He waved his hand. Catlin gingerly waved back.

Said Frayberg, "That's not a horse he's riding. It's a combination ram-jet and kiddie car with stirrups!"

"He's coming aboard the ship," said Catlin. "That's the entrance port down there...."

Wilbur Murphy sat in the captain's stateroom, taking careful breaths of air.

"How are you now?" asked Frayberg.

"Fine. A little sore in the lungs."

"I shouldn't wonder," the ship's doctor growled. "I never saw anything like it."

"How does it feel out there, Wilbur?" Catlin asked.

"It feels awful lonesome and empty. And the breath seeping up out of your lungs, never going in—that's a funny feeling. And you miss the air blowing on your skin. I never realized it before. Air feels like—like silk, like whipped cream—it's got texture...."

"But aren't you cold? Space is supposed to be absolute zero!"

"Space is nothing. It's not hot and it's not cold. When you're in the sunlight you get warm. It's better in the shade. You don't lose any heat by air convection, but radiation and sweat evaporation keep you comfortably cool."

"I still can't understand it," said Frayberg. "This Prince Ali, he's a kind of a rebel, eh?"

"I don't blame him in a way. A normal man living under those domes has to let off steam somehow. Prince Ali decided to go out crusading. I think he would have made it too—at least on Cirgamesç."

"Certainly there are many more men inside the domes...."

"When it comes to fighting," said Murphy, "a sjambak can lick twenty men in space-suits. A little nick doesn't hurt him, but a little nick bursts open a space-suit, and the man inside comes apart."

"Well," said the Captain. "I imagine the Peace Office will send out a team to put things in order now."

Catlin asked, "What happened when you woke up from the chloroform?"

"Well, nothing very much. I felt this attachment on my chest, but didn't think much about it. Still kinda woozy. I was halfway through decompression. They keep a man there eight hours, drop pressure on him two pounds an hour, nice and slow so he don't get the bends."

"Was this the same place they took you, when you met Ali?"

"Yeah, that was their decompression chamber. They had to make a sjambak out of me; there wasn't anywhere else they could keep me. Well, pretty soon my head cleared, and I saw this apparatus stuck to my chest." He poked at the mechanism on the table. "I saw the oxygen tank, I saw the blood running through the plastic pipes—blue from me to that carburetor arrangement, red on the way back in—and I figured out the whole arrangement. Carbon dioxide still exhales up through your lungs, but the vein back to the left auricle is routed through the carburetor and supercharged with oxygen. A man doesn't need to breathe. The carburetor flushes his blood with oxygen,