Wasteland of flint

Despite an angry desire to shout at the thick-headed old man over the comm, Anderssen restrained herself. We'll have to land eventually, she thought grimly. Countless questions had come to mind since their last conversation on the slopes of Prion. And then I'll sit on him if I have -

'Hummingbird, look out!' Gretchen's voice rang thin and shrill in the cabin of the Gagarin.

The nauallis's Midge had suddenly jerked sideways, toward the looming wall of the Escarpment. What at first seemed to be a black crevice in the mountainside was now visible as a huge canyon. Hummingbird's ultralight was sweeping toward the opening at tremendous speed. Gretchen immediately hauled right on the control stick and Gagarin swung round with gratifying speed. She stared out of the port side of the aircraft, searching for a telltale – There!

Far below, the sand was in constant motion, gusting thin streamers of reddish dust toward the face of the Escarpment. The dunes made sort of a nozzle where speeding clouds of grit rolled across the valley floor. Anderssen cursed, realizing they had come unawares upon the mouth of the canyon.

Static jammed the comm band and Hummingbird's Midge had disappeared from view. Gretchen stabbed a gloved finger at the control panel and the nav pane appeared. Keeping one eye on the controls and the other on the looming wall of basalt ahead, Gretchen saw the other ultralight had gone down near the mouth of the canyon. Winking amber lights indicated some kind of damage. Gritting her teeth, Andersen let the Gagarin spin into a precipitous spiral.

The little aircraft swept down out of the sky, skimming across the tops of the dunes. Sand and grit rattled against the windows and Gretchen angled away from the funnel-path centered on the entrance to the canyon. Her sensors now showed nearly a two hundred-k wind rushing into the slot. The nauallis had flown right into an invisible wall of air.

'Hummingbird, can you hear me?' Gretchen powered up the comm and began broadcasting on multiple channels. Maybe microwave will work. 'It's Anderssen, I'm coming in to get you.'

The Gagarin sideslipped low across the valley floor, droning up and down over dune after dune. The wall of the Escarpment rose to blot out the sky. Gretchen flew into shadow and the wind grew massively worse. The Gagarin shuddered in the twisting crosscurrents, wings rippling and flexing. The invisible river kept trying to suck her into the canyon mouth.

Waves of red and tan sand ended abruptly in a glassy, polished wall of black and gray stone. Gretchen pulled up, her stomach doing loop-de-loops, and circled. Peering out of the side door, she caught sight of a glittering rainbow flash very near the canyon entrance. Swallowing, mouth dry with fear, Anderssen rolled the stick right and Gagarin heeled over as gently as a turning shrike.

'Careful,' she muttered, keeping an eye on the radar display. The entrance to the canyon flickered on the panel and the kilometers between her and the deadly opening spiraled down quickly. A kilometer short, she turned again, away from the cliffs of the Escarpment and touched down on the side of a sloping dune. Gagarin slid to a halt on a thirty-degree slope, though Gretchen's stomach told her the rippled sand was as level as a kitchen floor.

Engines growling, Gretchen retracted the wings and disengaged the brakes. Bouncing over the slope, sand spurting away from the wheels, she drove the aircraft up over the crest of the ridge. Three more dune ridges separated her from Hummingbird, but Anderssen took her time, letting the ultralight jounce along, all three fat wheels shimmying in the heavy sand.

The other Midge came into view, canted sideways, one wing crumpled into hard- packed gravel. Hummingbird rose as Gagarin approached, djellaba snapping around his legs. He waved. Gretchen waved back and let the ultralight putt-putt to a stop.

'Are you all right?' Local comm was awash with warbling static and queer shrieking echoes.

The nauallis nodded, tapping his earpiece, and began trudging across the sand toward her. Wind hissed past the door and whined across Gagarin's wings. A constant rattle of grit pattered against the canopy. Gretchen pulled a heavy lever set into the floor and felt a sharp thump-thump as the sand anchors fired into the dune.

'…hear me?' Hummingbird's voice cut across the interference. 'Anderssen?'

'I hear you.' Gretchen swung the door open, feeling a buffet from the gusting wind. Her right hand was already dragging a tool belt out from under the seat. 'How bad is the damage?'

'Manageable. Perhaps.' Hummingbird ducked under the wing, his head tightly wrapped in the folds of his kaffiyeh. Even at such short range his voice was distorted by the comm cutting in and out. 'Both pumps switched over, so not much H₂ was lost, but the wing and landing gear are badly damaged.'

Gretchen gave him a grim look, shook her head and began making her way in the heavy wind toward the damaged ultralight. Hummingbird stared after her, then followed, head bent against the blowing sand. Though she couldn't see his face, the old Mйxica looked worried.

'Push!' Anderssen growled, putting her shoulder against the bent wing. Hummingbird was right by her side and together, straining and grunting with effort, they managed to free the honeycombed length of composite and hexsteel from the clinging sand. The entire Midge tipped over, rocking back on the port and forward wheels. Wind gusted, threatening to tear the aircraft from their grasp. Gretchen peered under the wing and her face screwed up into a grimace. The starboard landing gear was twisted into something very much like a pretzel. She looked sideways at Hummingbird. 'Can you hold this weight?'

He nodded, legs braced in the sand, broad shoulders against the underside of the wing.

Anderssen scrambled around under the tail and threw open the cargo door. Two heavy canvas duffels were squeezed inside. She grabbed both by their straps and hauled them out. Slinging one over her shoulder, Gretchen staggered along the length of the unbroken wing, the second duffel in her arms. Wheezing with effort, she dumped the heavy bag on the ground beneath the wingtip and shrugged the other into her hands. A recessed hook for a ground anchor flipped down from the underside of the airfoil, giving her enough purchase to hang the duffel. The entire Midge shivered and Gretchen heard Hummingbird cough in surprise as weight lifted from his shoulders.

A moment later, the second duffel was adding its weight to the counterbalance and Gretchen could nip around to starboard again. The Midge creaked into precarious balance on the two good wheels. Hummingbird was holding the wingtip steady with both hands, a questioning look on his face.

'Keep hold,' Gretchen said as she dug into her tools. She found a powered wrench, tested the tool – which responded with a high-pitched burring sound – and smiled. 'Just for another thirty minutes or so.'

Night came on suddenly in the shadow of the Escarpment. One moment Gretchen was working in a diffuse blue dimness, the next everything had plunged into complete darkness. She stopped, a welder sparking blue-white in her hand, and looked up. Hummingbird had found a cave, a deep overhang a kilometer and a half from the mouth of the slot, where they'd dragged the Midge s and their gear. Some shelter from the gusting wind was better than nothing.

'I need some light,' Gretchen said into the gloom. There was a click on the comm circuit and the bright white glare of a camp lantern set on high flared around her. 'Too bright…thanks.'

The circle of illumination dimmed to a reasonable level. Hummingbird's feet appeared out of shadow, boots crunching on scattered, shalelike debris covering the floor of the overhang. The nauallis squatted, watching her work.

Gretchen had laid out an old blanket covered with the bits and pieces of the broken landing gear on top of one of the hextile pads. The main strut had snapped clean off when Hummingbird's Midge corkscrewed into the dunes, and the rest had been badly twisted by the impact. Gretchen was straightening each section of hexsteel with a set of wrenches and a jimmied-up guide. The little welder was on its last legs, but had lasted long enough to get most of the sections patched back together.

'You've done this before,' Hummingbird said, fingers intertwined between his knees.

'All the time.' Gretchen adjusted her goggles and flicked the welder to life. The burning white point hissed and spat, but there was very little smoke in such an anemic atmosphere. 'Mechanical things are born to break in the field – no matter how new they are. Mostly the Company sends me places where there's no support – no handy