He could not see enough through the compartment grills to identify just what the compartments were; he was forced to rely on what he could hear.

The engine rooms were easily identified. In one area he heard the banging of pots and pans, the steaming of kettles ... obviously the galley. He found the control area. He could hear the clatter of typing instruments, the _click-click-click_ of the computers working out the orbits and trajectories for the scout-ships as they moved out from the orbit-ship or came back in. In another compartment he heard a dispatcher chattering his own special code-language into a microphone in a low-pitched voice. He pa.s.sed another grill, and then stopped short as a familiar voice drifted through.

Merrill Tawney's voice.

Tom hugged the grill, straining to catch the words. The company man sounded angry; the man he was talking to sounded even angrier. "I can't help what you want or don't want, Merrill, I can only report what we've found, and that's nothing at all. Every one of those claims has been searched twice over. Doc and his boys went over them, and we didn't find anything they missed. I think you're barking up the wrong tree."

"There's _got_ to be something," Tawney said, his voice tight with anger. "Hunter couldn't have taken anything away from there, he didn't have a chance to. You read the reports..."

"I know," the other said wearily, "I know what the reports said."

"Then what he found is still there. There's no other possibility,"

Tawney said.

"We went over that rock with a microscope. We blew it to shreds. a.s.say has gone through the fragments literally piece by piece. They found low grade iron, a trace of nickel, a little tin, and lots of granite. If we never found anything richer than that, we'd have been out of business ten years ago."

There was a long silence. Tom pressed closer to the grill. Then he heard Tawney slam his fist into his palm. "You know what Roger Hunter's doing, don't you?" he said. "He's making fools of us, that's what! The man's dead, and he's making us look like idiots. If we hadn't been so sure we had the lode spotted ..." He broke off. "Well, that's done, we can't undo it. But this brat of his...."

"Any luck there?"

"Not a word. He's playing coy."

"Maybe he doesn't know anything. Doc made a bad mistake when he blasted the other one ... suppose _he_ was the only one that knew."

"All right, it was a mistake," Tawney snapped. "What was he supposed to do, let him get back to Mars? We've got a good front there, but it's not that good. If the United Nations gets a toehold out here, the whole Belt will go into their pocket, you realize that. They're waiting for us to make one slip." He paused, and Tom heard him pacing the compartment.

"But I think we've got our boy. This one knows. We've been spoiling him so far, that's all. Well, now we start digging. When I get through with him, he'll be begging us to let him tell. You just watch me, as soon as the okay comes through...."

Tom drew back from the grill, moving on in the darkness. So far he had not rushed his exploration ... there was a chance to use the ducts for escape, he wanted to know them well. But now he knew the hour was getting late. So far Greg and Johnny had been stalling Tawney ... but Tawney was getting impatient.

He moved quickly and he thought again of what Tawney had said. Tawney was right about one thing ... there was no way that Dad could have hidden a Big Strike so n.o.body could find it. It had to be there....

And yet it wasn't. He and Greg hadn't found it. Tawney's men hadn't found it, either. Why not? There must be a reason.

But he could not put his finger on it.

Half an hour later he was seriously worried. Half the compartments in the area were deserted, the men leaving for the cafeteria. The thought reminded Tom how hungry he was, and thirsty. His small emergency ration kit was empty. He toyed with the thought of sneaking into a food storage compartment, then thrust it out of his mind as too risky. He had to find Greg and Johnny before anything.

He pa.s.sed a grill, and heard a murmur of voices; something in the deep ba.s.s rumble caught his ear, and he stopped, listened.

The voices stopped also.

He waited for them to begin, pressing against the grill. Johnny Coombs was not the only man with a deep ba.s.s voice, he might have been mistaken. He listened, but there was no sound. He heard the whir of a fan begin, still no sound, not even footsteps.

And then it happened, so fast he was taken completely off guard. The grill suddenly gave way, pitching him forward into the compartment.

Something struck him behind the ear as he fell; there was a grunt, a sharp command, and he was pinned to the floor in the semi-darkness of the compartment.

Then he heard a gasp, and he opened his eyes. He was staring into his brother's startled face. Greg was pinning his shoulders to the carpeted deck, and behind him Johnny Coombs had a fist raised....

But they had stopped in mid-air, like a tableau of puppets. Greg gaped, his jaw falling open, and Tom heard himself saying, "What are you trying to do, kill a guy? Seems to me one time is enough."

He had found them.

10. The Trigger

In the first instance of astonishment they were speechless. Later, Tom said it was the first time in his life that he had ever seen Greg totally without words; his brother jumped back, as if he had seen a ghost, and his mouth worked, but no sounds came out.

"Don't worry, it's me all right," Tom said, "and I'm mighty hungry."

Greg and Johnny stared at the black hole behind the grill ... and then Greg was pumelling him, pounding him on the back, so excited he couldn't get a sentence out, and Johnny was hovering over them, incredulous but forced to believe his eyes, like a father overwhelmed by the impossible behavior of a pair of unpredictable children. It was a jubilant reunion.

They broke open the cabinets and refrigerator in the back of the lounge and pulled out surro-ham and rolls, while Johnny got some coffee going.

Tom was so famished he could hardly wait to make sandwiches of the ham.

He ate it as fast as he got it.

But finally he slowed up, got his mouth empty enough to talk. "All right, let's have the story," Greg said, still looking as though he couldn't believe his eyes. "The last we saw, you were blown into atoms out there in that _Scavenger_ ... you've got some nerve turning up now and scaring us half out of our skins...."

"You want me to go back in my hole?"

"Just sit still and talk!"

Tom told them, then, starting from the beginning.

Through it all Greg stared in admiration. "We've got a genius among us, that's all," he said finally. "And I always thought you were the timid one...."

"But what else could I do?" Tom said. "You know what they say about grabbing a tiger by the tail ... once you get hold, you've got to hold on."

"Okay," Greg said, "but the next time I make a crack about your retiring nature, remind me to stick my foot in my mouth."

"I'll do it for him," Johnny Coombs rumbled.

Tom nodded toward the open grill. "The only thing I don't see is how you knew I was back there."

Johnny grinned. "We were busy taking down the grill when you came along. We'd found three microphones in this place, and figured they might have one behind the grill. And then we heard somebody breathing back there ... we thought they'd posted a guard back there, just to snoop us."

"Well, I'm glad you didn't hit him any harder...."

Johnny started to say something, then stopped, c.o.c.ked his head toward the door. There were footsteps in the corridor outside; they came closer, stopped by the door. "Quick," Johnny hissed, "back inside!"

There was no time to look for other concealment. Tom leaped across the room, jumped up into the shaft again, and Greg slammed the grate up into place just as the hatchway door swung open.

Merrill Tawney walked into the room, with two burly guards behind him.

For the first few seconds, Greg was certain that they were lost. He stood with his back to the ventilator grill, frozen in his tracks as the fat little company man came in the room. He tried to keep his face blank, but he knew he wasn't succeeding. He saw the puzzled frown form on Tawney's face.

The company man motioned the guards into the room, peered suspiciously at Greg and Johnny. "Am I interrupting something, by any chance?"