Bowman fell back, blood spurting from his nose. He lost his footing and toppled over the bench seat beside him, banging the elbow of his gun arm. The pistol fell, clattering on the bone floor right beside his foot, and he was glad it did not go off. But by the time he had recovered the weapon and swung the flashlight around, he had only enough time to catch Mather disappearing through the door to the plaza, the Martian robe flying like a flag from his shoulders.
He hunted for the madman all night, light and gun at the ready. He steeled himself to shoot on sight, but when the thin Martian dawn came he was still alone.
The mechanical behemoth ground on, house by house, street by street, filling its hoppers with the dust of millennia-dead sea beasts, excreting its cubes of gold and silver, copper and bronze, still warm from the atomic smelter. Bowman fretted that Mather would return from his hiding place in the blue hills and try to stop the work. He took men from other projects, gave them guns, and put them on guard.
The sentries reported seeing occasional flashes of sunlight on metal up in the blue hills, but the madman made no more attempts to interfere with the reduction of the bone city. Finally, the day came when they reloaded the automated miner onto its multiwheeled transporter and prepared to move it across the dusty, glass-bottomed sea to the next deposit. The operation proceeded without incident.
Red Bowman’s bonus was safe again. He had been a man short for a while, but had managed to make up a full crew’s complement by hiring an experienced hard-rock mining man who had come to Mars hoping to get rich prospecting in the barrens but had found nothing.
The crew chief watched the transporter slowly carry the leviathan away, followed by its floating contrail of pale dust. Then he started up his jeep and drove through the scar where the town had been. The houses were gone, as well as the pavement of the streets on which they had stood for thousands of years. The miner had scraped right down to the packed earth beneath, and in places to the rufous Martian bedrock. After it had uncovered the first urn buried beneath a courtyard, Bowman had called in the technician to reset the automatic controls. The machine had then proceeded to find scores of the gold, silver, and electrum containers, increasing the operation’s precious-metals yield by a solid percentage. New Ares had awarded Bowman an “attaboy” bonus for showing initiative.
He came to where the gate had stood and put the jeep onto the ribbon of crushed white rock. He drove slowly toward the hills, then up into them as the road began to climb. He moved his gaze from side to side, watching for flashes of light.
The hills always gave him the creeps. They were as silent as the ancient towns, but somehow the silence was different here. The towns were not human-made, but they had been manufactured by beings who, for all their peculiarities, shared some commonalities with Earthmen. The land itself, though, that was pure Mars. It had never had any connection to humankind, not all the way back to the gelling of the planets. Men might come and build on it, but they would never be
That was Bowman’s way of thinking, and before he moved off to the next demolition, he wanted to talk about it with the one man he knew who might understand. So he drove higher into the hills, stopping every now and then, his head turning from side to side, waiting for the bright wink.
Late in the afternoon, he saw it from the corner of an eye and turned toward the long, boulder-strewn slope from which it had come. There was a group of tall rocks halfway up the hill. They might have been a natural occurrence, or they might have been placed there for some obscure Martian purpose. But when he trained his binoculars on the formation, he saw motion through a gap between two of the stones.
He got out of the jeep and walked toward the place, his hands held out to show that they were empty. “Mather!” he called. “We’re leaving! Nobody’s going to come after you!”
A voice came from the rocks, thin on the less substantial Martian air. It had a flutey quality, as if a musical instrument were speaking. “What do you want?”
“I just wanted to say good-bye,” Bowman said. He was closer now, close enough to see between the gaps in the rocks. He saw silver and touches of gold. “You know,” he said, “that mask rightly belongs to New Ares Mining.”
“No,” said the thin voice, “I don’t know that.”
“Doesn’t matter,” Bowman said. “We’ll get it later, I suppose. After you die.”
There was no response to that.
“You are going to die, you know,” said the Earthman, trudging up the slope. “Fact is, I don’t know how you’ve managed to survive this long without water. Were you sneaking in at night to steal it?”
“No.”
“Then how?”