The plyplastic buds swelled out, elongating to become small thick delta shapes. The thrumming increased dramatically as they caught the wind. Tethers were being strained close to their tolerance limits. Justine prayed the carbon-reinforced titanium anchor struts, driven fifty meters into the naked rock by the support team, would survive the next few minutes.
Some little demon inside said: Last chance to stay put, and live.
Justine moved her virtual hand and flipped the forward tether icon. The locks disengaged, and she was immediately shaken violently from side to side as the hyperglider fishtailed. An instinctive response from the implanted training memory came to her aid. She twisted the joystick, and the wings bent downward several degrees. A touch on the rear tether icon, and the two strands extended. The hyperglider lifted twenty meters into the air, still shaking frantically, as if it was desperate to be rid of its final restraints. Justine halted the tether extension, and began to test her control surfaces. The rear of the hyperglider was quickly shifted into a vertical stabilizer fin. Wings expanded a little farther, angling to produce more lift. Finally, once she cleared the ground, the dreadful thrumming vibration faded away—although never cutting out altogether. Now all she had to contend with was the awesome roar of the wind as it accelerated toward two hundred kilometers an hour.
At this point, the hyperglider was nothing more than a giant kite. Very carefully, she began to extend the rear tethers still farther. They played out behind her, and the hyperglider rose eagerly away from the ground. After two minutes of careful extension, she was a hundred meters high. The ground wasn’t visible, for which she was obscurely thankful. Tatters of mist were scudding past so fast they prevented her from seeing anything beyond twenty or thirty meters. Raindrops that hit the cockpit transparency immediately hurtled off, scoured clean by the tremendous air velocity. Constantly flexing the wings to compensate for turbulence, she began extending the tethers again.
Twenty-five minutes after leaving the ground, she was fourteen hundred meters high. It was a cautious ascent, but the two tether cables were shaking with a harmonic that set her teeth on edge. Justine configured the plyplastic hyperglider for freeflight. The wings flowed outward, reaching a hundred ten meters at full span while curving around into a crescent shape; from above it made the hyperglider look like a giant scimitar blade, with the cockpit bullet jutting out of the apex. Behind her, the rear fuselage performed a vertical stretch, becoming a deep triangular stabilizer, its tips twitching with near-subliminal motion to keep the craft lined up accurately in the windstream.
She reached fifteen hundred meters in altitude. The wings curled fractionally along their length, presenting the most efficient lift capture profile to the wind. Looking at the figures on the console screen, she couldn’t believe the strain on the tether cables, almost all the safety margin was used up.
Justine sucked down a deep breath as the raw elements screamed around her. If she had the courage, this ought to be the ride of a lifetime. If… She thought back to all those years she’d lived through, from this strange viewpoint they all seemed so achingly identical, and boring.
A virtual finger reached forward, almost reluctantly touching the disengage icon.
The g-force slammed her back into the seat as the hyperglider cut free, bringing back the weight she hadn’t felt since she arrived on Far Away. The craft hurtled toward the blunt end of Stakeout Canyon at two hundred kilometers an hour. Immediately it lurched to starboard and began to descend. She twisted the joystick to compensate—not fast, smooth and positive—shifting the wings to alter the airflow. The response was astonishingly quick, sending her swooping upward. Then a near-spin started, and she flipped the stabilizer tips to counter it.
Every moment demanded her total concentration merely to hold the hyperglider roughly level. It wasn’t just the featureless wrap of cloud that cut her off from the outside world. Her attention was focused solely on the attitude display and the radar. As Stakeout Canyon narrowed, she had to hold her course directly down the center. All the time the rock walls closed in toward each other, growing steeper in the process, the furious buffeting increased proportionally. Wild turbulence was constantly trying to swirl the craft around into a spin, or pull it down to oblivion.
She wasn’t even aware of time passing, only the frantic, exhausting fight to keep the hyperglider on track. If she let it ascend too high, the massive upper windstreams would carry it away over the sides of the canyon as they gushed up and away, expanding in release from the escalating pressure at the base of the walls. She would wind up somewhere on the weather-blasted and boulder-strewn midslopes of Zeus or Titan, hundreds of kilometers from the recovery vehicles of the caravan.
Without any warning, the radar picked up the end of the canyon, twenty-five kilometers away. At this point, where the three volcanoes intersected, Mount Herculaneum was a simple vertical cliff, six kilometers high. Her own altitude was three and a half kilometers. Outside, the wind speed was still increasing within the constriction. The weather radar screen flared lurid scarlet around the edges as it tracked the lethal currents and shock waves reverberating off the rock. Darkness deepened around her as the shredded clouds were crushed back together.
Justine retracted the wings slightly, sacrificing the propulsive push they generated for a little more maneuverability. It had begun to rain steadily outside the cockpit now, thick droplets slashing along beside her. Paradoxically, visibility began to lift. The clouds were recondensing under the pressure. Droplets began to merge together for an instant before the raging winds tore them apart. Then they would re-form a second later, larger this time as the pressure continued to build relentlessly. Semicohesive horizontal streams of water churned and foamed around the hyperglider fuselage.
The cliff was twelve kilometers away, and she was down to three kilometers from the canyon floor. Water had become so dense, it was as if the hyperglider was surfing along inside the crest of some crazy airborne wave. The sun had risen above the volcano’s slopes, shining down into the top of the canyon. Suddenly it struck the chaotic foam whipping around the hyperglider, and the world flared into a thousand tattered sparkling rainbows, birthing and dying, clashing and colliding. Justine laughed in dazed appreciation at the astounding sight.
Three kilometers ahead of her, the gushing rivulets merged into a single writhing torrent two kilometers above the floor of Stakeout Canyon. That was a couple of kilometers from the cliff. The rocky constriction was at its narrowest, the pressure at its highest. There was only one way the churning river could escape.
Justine slid the hyperglider above the water, staring down on it in utter disbelief. The rainbows fizzled out abruptly. Rock slammed up into her vision to replace them, terrifyingly huge walls of it, stretching up halfway to heaven. Right in front of her, the flying river curved upward and began the long, impossible powerclimb to freedom as the entire storm went vertical. Blasting out an eternal thunderclap, the wind reached three hundred kilometers an hour. She knew she was yelling wordlessly, but couldn’t hear herself above the cacophony bombarding the cockpit.
The hyperglider was wrenched upward. G-force slammed Justine down into the seat again. Her knuckles grew white as she clenched the grip bars, fearful she’d lose contact with the i-spots. She wrestled the wing surfaces to obey in a desperate bid to maintain stability within the geysering air. Water rose with her, defying gravity to shoot up parallel to the cliff. Even with the hyperglider demanding her full devotion simply to survive the demented air currents, she spared the time, a couple of precious seconds, to stare at the incredible phenomenon. A waterfall going straight up.