them now. Deep tectonic rifts appeared, frozen slabs of magma jutted here and there from under the debris, and over these the transporter crawled with difficulty, first heaving up like a boat on a wave, then dropping heavily down, as though it were about to plunge head over heels into some unknown cavity. Pirx caught sight of the mast of the next relay, glanced quickly at the celluloid map card pressed to his knees, and ordered everyone to fasten their helmets. From now on they would be able to communicate only by intercom. The transporter managed to shake even more violently than before—Pirx’s head wobbled around in its helmet like the kernel of a nut inside an otherwise empty shell.
When they drove down the slope to lower ground, the saw of Toricelli disappeared, blocked out by nearer elevations; almost at the same time they lost their right neighbor. For a few minutes more they heard its call signal, but then that was distorted by the waves bouncing off the sheets of rock. Complete radio silence followed. It was extremely awkward trying to look through the periscope with a helmet on; Pirx thought he would either crack his viewplate or smash the eyepiece. He did what he could to keep his eyes on the field of vision at all times, though it shifted drastically with each lurch of the machine and was strewn with endless boulders. The jumble of pitch-black shadow and dazzlingly bright surfaces of stone made his eyes swim.
Suddenly a small orange flame leaped up in the darkness of the far sky, flickered, dwindled, disappeared. A second flash, a little stronger. Pirx shouted, “Attention everyone! I see explosions!” and feverishly turned the crank of the periscope, reading the azimuth off the scale etched on the lenses.
“We’re changing course!” he howled. “Forty-seven point eight, full speed ahead!”
The terms of this order really applied to a cosmic vessel, but the driver understood it all the same; the plates and every joint of the transporter gave a shudder as the machine wheeled around practically in place and surged forward. Pirx got up from his seat: its tossing was pulling his head away from the eyepiece. Another flash—this time red-violet, a fan-shaped burst of flame. But the source of those flashes or explosions lay beyond the field of vision, hidden by the ridge they were climbing.
“Attention everyone!” said Pirx. “Prepare your individual lasers! Dr. McCork, please go to the hatch. When I give the word, or in case of a hit, you’ll open it! Driver! Decrease velocity!”
The elevation up which the machine was clambering rose from the desert like the shank of some moon monster, half sunken in debris; the rock in fact resembled, in its smoothness, a polished skeleton or giant skull; Pirx ordered the driver to go to the top. The treads began to chatter, like steel over glass. “Hold it!” yelled Pirx, and the transporter, coming to a sudden halt, dipped nose-down toward the rock, swayed as the stabilizers groaned with the strain, and stopped.
Pirx looked into a shallow basin enclosed on two sides by radially spreading, tapered embankments of old magma flows; two-thirds of the wide depression lay in glaring sun, a third was covered by a shroud of absolute black. On that velvet darkness there shone, like a weird jewel, fading ruby-red, the ripped-open skeleton of a vehicle. Besides Pirx, only the driver saw it, for the armor flaps of the windows had been lowered. Pirx, to tell the truth, didn’t know what to do. “A transporter,” he thought. “Where is the front of it? Coming from the south? Probably from the construction group, then. But who got it, the Setaur? And I’m standing here in full view, like an idiot—we have to conceal ourselves. But where are all the other transporters? Theirs and mine?”
“I have something!” shouted the radiotelegraph man. He connected his receiver to the inside circuit, so that they could all hear the signals in their helmets.
“Aximo-portable
When they drove down the slope to lower ground, the saw of Toricelli disappeared, blocked out by nearer elevations; almost at the same time they lost their right neighbor. For a few minutes more they heard its call signal, but then that was distorted by the waves bouncing off the sheets of rock. Complete radio silence followed. It was extremely awkward trying to look through the periscope with a helmet on; Pirx thought he would either crack his viewplate or smash the eyepiece. He did what he could to keep his eyes on the field of vision at all times, though it shifted drastically with each lurch of the machine and was strewn with endless boulders. The jumble of pitch-black shadow and dazzlingly bright surfaces of stone made his eyes swim.
Suddenly a small orange flame leaped up in the darkness of the far sky, flickered, dwindled, disappeared. A second flash, a little stronger. Pirx shouted, “Attention everyone! I see explosions!” and feverishly turned the crank of the periscope, reading the azimuth off the scale etched on the lenses.
“We’re changing course!” he howled. “Forty-seven point eight, full speed ahead!”
The terms of this order really applied to a cosmic vessel, but the driver understood it all the same; the plates and every joint of the transporter gave a shudder as the machine wheeled around practically in place and surged forward. Pirx got up from his seat: its tossing was pulling his head away from the eyepiece. Another flash—this time red-violet, a fan-shaped burst of flame. But the source of those flashes or explosions lay beyond the field of vision, hidden by the ridge they were climbing.
“Attention everyone!” said Pirx. “Prepare your individual lasers! Dr. McCork, please go to the hatch. When I give the word, or in case of a hit, you’ll open it! Driver! Decrease velocity!”
The elevation up which the machine was clambering rose from the desert like the shank of some moon monster, half sunken in debris; the rock in fact resembled, in its smoothness, a polished skeleton or giant skull; Pirx ordered the driver to go to the top. The treads began to chatter, like steel over glass. “Hold it!” yelled Pirx, and the transporter, coming to a sudden halt, dipped nose-down toward the rock, swayed as the stabilizers groaned with the strain, and stopped.
Pirx looked into a shallow basin enclosed on two sides by radially spreading, tapered embankments of old magma flows; two-thirds of the wide depression lay in glaring sun, a third was covered by a shroud of absolute black. On that velvet darkness there shone, like a weird jewel, fading ruby-red, the ripped-open skeleton of a vehicle. Besides Pirx, only the driver saw it, for the armor flaps of the windows had been lowered. Pirx, to tell the truth, didn’t know what to do. “A transporter,” he thought. “Where is the front of it? Coming from the south? Probably from the construction group, then. But who got it, the Setaur? And I’m standing here in full view, like an idiot—we have to conceal ourselves. But where are all the other transporters? Theirs and mine?”
“I have something!” shouted the radiotelegraph man. He connected his receiver to the inside circuit, so that they could all hear the signals in their helmets.
“Aximo-portable
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