it came to three-point climbing, which he had to resort to often, in order to free a hand to track the robot’s radioactive trail. Once he glanced down from over the top of a flake sturdy enough to be a wall. At high elevation, despite their painstaking progress, it took Pirx a while to spot Krull standing at the bottom of the air shaft which opened at his feet—or, rather, not Krull but his suit, a tiny splotch of green against the gray.
Then came a nice little traverse. The going was getting tougher, but Pirx was slowly regaining the knack of it, so much so that he made better progress when he trusted to his body’s instincts than when he consciously sought out the best holds. Just how much tougher it would get he discovered when, at one moment, he tried to free his right hand to grab the detector dangling from his belt, and couldn’t. He had a foothold only for his left and something vaguely like a ledge under his right boot tip; leaning out as far as he could from the rock, he scouted at an angle for another foothold, but without any luck. Then he sighted something that portended a little shelf higher up, and decided to skip the detector.
Alas, it was verglassed and steeply pitched. In one place the ice bore a deep bite, evidence of some terrific impact. No booted foot could have made a gash that deep, he thought, and it occurred to him that it might have been an incision left by Aniel’s shoe—the robot weighed roughly a quarter of a ton.
Massena, who until now had been keeping pace, was starting to straggle. They reached the rib’s upper tier. The rock face, as craggy as before, gradually, even deceptively, had begun tilting beyond the perpendicular to become a definite overhang, impossible to negotiate without any decent foot-jams. The rift, well defined until now, closed a few meters higher up. Pirx still had some six meters of free line, but he ordered Massena to take up the slack so he could briefly reconnoiter. The robot had negotiated it without pitons, rope, or belays. If he could, so can I, thought Pirx. He groped overhead; his right ankle, jammed into the apex of the fissure that had brought him this far, ached from the constant straining and twisting, but he didn’t let up. Then his fingertips grazed a ledge barely wide enough for a fingerhold. He might make it with a pull-up, but then what?
It was no longer so much a contest with the cliff as between himself and Aniel. The robot had negotiated it—single-handedly, albeit with metal appendages for fingers… As Pirx began freeing his foot from the crack, his wriggling dislodged a pebble and sent it plummeting. He listened as it cleaved the air, then, after a long pause, landed with a crisp, well-defined click.
“Not on an exposure like that,” he thought, and, abandoning the idea of a pull-up, he looked for a place to hammer in a piton. But the wall was solid, not a single fissure in sight; he leaned out and turned in both directions—blank.
“What’s wrong?” came Massena’s voice from below.
“Nothing—just nosing around,” he replied.
His ankle hurt like hell; he knew he couldn’t maintain this position for very long. Ugh, anything to abandon this route! But the moment he changed direction, the trail was as good as lost on this mammoth of a rock. Again he scoured the terrain. In the extreme foreshortening of vision, the slab seemed to abound in holds, but the recesses were shallower than the palm of his hand. That left only the ledge. He had already freed his foot and was in a pull-up position when it dawned on him: there was no reversing now. Thrust outward, he hung in space with his boot tips some thirty centimeters out from the rock face. Something caught his eye. A rift? But first he had to reach it! Come on, just a little higher!
His next moves were governed by sheer instinct: hanging on with the four fingers of his right hand, he let go with the left and reached up to the fissure of unknown depth. That was dumb—it flashed
Then came a nice little traverse. The going was getting tougher, but Pirx was slowly regaining the knack of it, so much so that he made better progress when he trusted to his body’s instincts than when he consciously sought out the best holds. Just how much tougher it would get he discovered when, at one moment, he tried to free his right hand to grab the detector dangling from his belt, and couldn’t. He had a foothold only for his left and something vaguely like a ledge under his right boot tip; leaning out as far as he could from the rock, he scouted at an angle for another foothold, but without any luck. Then he sighted something that portended a little shelf higher up, and decided to skip the detector.
Alas, it was verglassed and steeply pitched. In one place the ice bore a deep bite, evidence of some terrific impact. No booted foot could have made a gash that deep, he thought, and it occurred to him that it might have been an incision left by Aniel’s shoe—the robot weighed roughly a quarter of a ton.
Massena, who until now had been keeping pace, was starting to straggle. They reached the rib’s upper tier. The rock face, as craggy as before, gradually, even deceptively, had begun tilting beyond the perpendicular to become a definite overhang, impossible to negotiate without any decent foot-jams. The rift, well defined until now, closed a few meters higher up. Pirx still had some six meters of free line, but he ordered Massena to take up the slack so he could briefly reconnoiter. The robot had negotiated it without pitons, rope, or belays. If he could, so can I, thought Pirx. He groped overhead; his right ankle, jammed into the apex of the fissure that had brought him this far, ached from the constant straining and twisting, but he didn’t let up. Then his fingertips grazed a ledge barely wide enough for a fingerhold. He might make it with a pull-up, but then what?
It was no longer so much a contest with the cliff as between himself and Aniel. The robot had negotiated it—single-handedly, albeit with metal appendages for fingers… As Pirx began freeing his foot from the crack, his wriggling dislodged a pebble and sent it plummeting. He listened as it cleaved the air, then, after a long pause, landed with a crisp, well-defined click.
“Not on an exposure like that,” he thought, and, abandoning the idea of a pull-up, he looked for a place to hammer in a piton. But the wall was solid, not a single fissure in sight; he leaned out and turned in both directions—blank.
“What’s wrong?” came Massena’s voice from below.
“Nothing—just nosing around,” he replied.
His ankle hurt like hell; he knew he couldn’t maintain this position for very long. Ugh, anything to abandon this route! But the moment he changed direction, the trail was as good as lost on this mammoth of a rock. Again he scoured the terrain. In the extreme foreshortening of vision, the slab seemed to abound in holds, but the recesses were shallower than the palm of his hand. That left only the ledge. He had already freed his foot and was in a pull-up position when it dawned on him: there was no reversing now. Thrust outward, he hung in space with his boot tips some thirty centimeters out from the rock face. Something caught his eye. A rift? But first he had to reach it! Come on, just a little higher!
His next moves were governed by sheer instinct: hanging on with the four fingers of his right hand, he let go with the left and reached up to the fissure of unknown depth. That was dumb—it flashed
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