CHAPTER 25
Mountain Air
AVERY
The valley looked simple from the ground.
That was its first deception.
The launch field sat outside Durango beneath a pale crescent moon.
To the east, mountains rose in overlapping ridges.
To the west, farmland opened into a broad basin.
The stage target was a marked meadow beyond the first ridge, close enough to see from the field and difficult enough to reach because the winds stacked in opposing directions.
Avery had spent half the night comparing Windline’s new observations with the public forecast and sponsor feed. The sponsor model still showed a broad southwesterly current. Windline showed a shallow eastward drainage flow near the ground, a westward layer above it, and possible shear at the ridge.
At 4:51, a yellow warning appeared.
UNMODELED DIRECTIONAL CHANGE: STATION 8 / 1,250 FT AGL.
Avery checked the raw packet. “Sam.”
He rolled beside her. “I see it.”
“Station Eight is not ours.”
“It belongs to VantageSky.”
The sponsor network displayed the station as normal. Windline had flagged it because the wind vane changed direction sharply while neighboring temperature and pressure remained stable.
Nolan joined them. “Instrument fault?”
“Maybe,” Avery said. “Or a shear layer the sponsor feed smoothed out.”
“Can we verify?”
“The station is on a ridge access road. Forty minutes each way.”
“Pilot balloon?” Sam asked.
Avery checked the field crew schedule. “Next release in nine minutes.”
They watched it rise.
At first the balloon moved east. At two hundred feet it drifted northwest. At six hundred it turned southwest. Near the ridge line, it seemed to pause, then accelerated north.
Nolan tracked it through binoculars. “There is your shear.”
Avery’s pulse quickened. Not because she had been right. Because the event’s primary display still showed the simpler route.
She opened the team channel. “Marisol, First Light requests review of sponsor Station Eight. We have conflicting upper-air observation near the north ridge.”
Another pilot cut in. “We have a green route.”
Marisol replied, “All teams, hold independent launch authority. Weather review in progress.”
The complaint channel erupted.
Nolan ignored it. “Options?”
Avery rotated the map. “If we launch low and stay east for twelve minutes, we can climb into the southwest layer before the ridge. But if the northerly shear descends, it pushes us toward the canyon.”
“Landing sites?”
“Two before the ridge. None suitable in the canyon.”
“Then we need an exit before the last field.”
She marked a decision line. “If we are not on southwest track by this road, we descend.”
“Altitude limit?”
“Seven hundred until clear of the ridge shadow.”
Nolan studied her face. “Do you believe the plan?”
“I believe it defines what would make us stop.”
“Better answer.”
Marisol returned on radio. Station Eight’s maintenance log showed a recent vane replacement. The raw reading was valid. VantageSky had weighted it out of the public feed as a probable local anomaly.
Avery felt anger rise cold and clean.
“Local anomalies are the point in mountain air,” she said.
Marisol agreed. The stage remained open, but all teams received the raw observation and a revised briefing. Three pilots withdrew. Others delayed.
Nolan looked at Avery. “Our plan still has an exit.”
“Yes.”
“Launch?”
She examined every visible cue: frost smoke, flags, cottonwoods, the pilot balloon now disappearing north of the ridge.
“Launch.”
First Light rose at 6:03.
The eastward drainage current carried them over waking farmhouses. Dogs barked below. A school bus moved along the highway with its headlights on. Avery felt the strange intimacy of looking down on ordinary life from a craft powered by flame and moving air.
At two hundred feet, Nolan climbed. The balloon turned northwest.
“West layer is lower than predicted,” Avery said.
“Adjustment?”
“Hold. It may deepen toward the ridge.”
They crossed the first decision point on time.
At four hundred feet, First Light turned southwest.
The target meadow appeared between two ridges, a bright square of flags.
Avery’s chest lifted. “Track is good.”
Nolan did not answer.
He was watching the north ridge.
A line of low cloud spilled over the saddle—not a storm, only fast-moving vapor, but its movement revealed the shear descending.
Windline chimed. Route confidence fell from seventy-one to forty-three.
“We are before the exit road,” Avery said.
“Barely.”
“If we climb above the shear—”
“We do not know its depth.”
“The target is six minutes.”
“The canyon is four.”
Avery saw the numbers. She also saw the event board in her mind, the customers who might watch, Leila’s gray binder, Priya’s apprenticeship. Success had acquired faces.
Nolan waited.
He did not use pilot authority to end the conversation. He made her stay inside it.
Avery looked again at the cloud pouring over the saddle. “Descend. Take the exit field.”
Nolan vented.
First Light dropped into the northwest layer. The target moved away. The exit field widened beneath them.
Another balloon continued toward the meadow. It climbed above the shear, caught a brief southwest current, and crossed the target cylinder. Cheers came over the open radio.
Avery hated the sound.
Then the balloon entered the northerly flow on the far side and accelerated toward the canyon. The pilot descended hard, clearing a line of trees and landing in a rocky pasture. No one was injured, but the basket tipped and a panel tore on barbed wire.
First Light landed upright in cut grass two miles away.
Avery remained in the basket after Nolan secured the fuel.
“We could have made it,” she said.
“Yes.”
“We also could have been them.”
“Yes.”
She climbed out. “I dislike answers that allow two truths.”
“That may be why weather keeps meeting you.”
Sam arrived with the chase crew. He reviewed the data before asking about the score.
Avery showed him the unmodeled station.
“Vantage removed it from the sponsor display,” she said.
Sam’s expression sharpened. “Do we have the raw feed agreement?”
“Yes.”
“Preserve everything.”
Avery saved the files in three locations.
Minutes later, Gideon Pike sent a message congratulating them on a prudent flight.
Then he added:
Windline identified the anomaly beautifully. This is exactly why we should discuss partnership.
Avery looked toward the torn balloon in the distance and understood that Gideon did not see the contradiction.
To him, the danger was a demonstration opportunity.