Tick lived inside the drive for fourteen hours a day, and the drive was only twenty-eight centimeters wide.

From the inside, the quantum resonance drive did not look like a machine. It looked like a cathedral built by someone who had never seen light but understood its mathematics. Superconducting coils glowed with a warm internal luminescence, each one no thicker than a human hair, arranged in spirals that extended into darkness. The quantum fields hummed at frequencies that Tick could feel in his bones — a vibration of 0.001 hertz meant decoherence, a shift of 0.0003 meant the drive was drifting, and a silence where there should have been vibration meant something had already gone catastrophically wrong.

Tick's world was twenty-eight centimeters wide and two kilometers long. He knew every surface, every coil, every micro-junction of the drive's interior the way a monk knows the psalter. He could feel a quantum fluctuation through the palm of his hand — his fingertips had been surgically enhanced with nano-sensors during his childhood training, and the sensation was like reading Braille written in energy.

Today, the drive was singing a note he had never heard before. A vibration of 0.0047 hertz, oscillating at a frequency that did not match any known gravitational pattern. Tick logged it, adjusted the compensating frequency by 0.003 trillionths of a hertz, and emerged from the drive three hours later, blinking in the observation deck's light.

Chief Engineer Grady Holt was already there. Grady was seven-foot-five inches of Titan-class genetic engineering — broad-shouldered, deep-voiced, with the kind of presence that made other crew members straighten their posture without knowing why. He had been born on the Long Look, one of the first generation of ship-born commanders, and had never felt gravity that was not the gentle spin of a rotating hull.

"Report," Grady said. He did not look up from the diagnostic panel in front of him. Grady did not look up much. When you were seven-foot-five inches tall and in command of a two-kilometer-long spaceship, you had learned to manage your gaze like a resource.

Tick stood in front of him and described the vibration. He was three feet tall and used precise technical language that Grady appreciated: Tick never wasted words, never hedged, never apologized for uncertainty. When Tick said the drive needed an adjustment, Grady knew that Tick had felt it in his hands and calculated it in his head and was now standing in front of a Chief Engineer who was too proud to ask how sure he was.

"I'll have the sensors recalibrated," Grady said. "Your readings may be drifting."

Tick said nothing. He had learned, over twenty-nine years of service, that arguing with Grady was like arguing with gravity: possible, but exhausting and ultimately pointless. He turned and walked back toward the drive.

Dr. Amara Okafor found him at the airlock. Amara was also Titan-class — seven-foot-two, broad-shouldered — but she used her size differently than Grady. Where Grady filled space with authority, Amara folded herself into it, making her height feel like an accident rather than a design choice.

"Tick," she said. "I read your sensor log."

Tick looked at her. Amara Okafor was the only crew member who had ever asked him how he felt after a shift inside the drive. The only one who had ever questioned whether a human being should spend fourteen hours a day in a twenty-eight-centimeter space for twenty-nine consecutive years.

"The anomaly," Amara continued. "It's not a sensor error."

She showed him the data. A massive gravitational source — possibly a rogue planet, possibly something larger — was on a collision course with the Long Look's trajectory. The estimated time to closest approach: seventy-two hours. At current velocity and course, the ship would pass within 0.03 AU of the object. That was not destructive at 0.03 AU — but it was enough to shear off the drive's external sensors, disrupt the quantum field, and send the ship spinning into the dark.

Tick calculated in his head. The drive adjustment he had requested earlier — 0.003 trillionths of a hertz — would shift the ship's course by just enough to avoid the anomaly. But the adjustment required entering the drive's primary cavity, which only he could access.

He told Amara. She read the calculation. Her face went pale.

She went to Grady.

The crew gathered in the briefing room. Amara presented the data. Grady reviewed it. He was not an astronomer — his expertise was in propulsion and systems engineering — but he understood the numbers. The math was correct. The anomaly was real. The threat was real.

"The drive adjustment will resolve this?" Grady asked.

"Yes," Amara said. "But it requires a manual calibration inside the primary cavity. Only a Tuner can do it."

Grady nodded. "Tick will handle it."

Tick, standing at the back of the room, three feet of engineered precision in a room full of seven-foot giants, said: "I can handle it. But I need authorization."

Grady looked at him. The authorization was a formality — Tick had performed seventeen thousand adjustments over twenty-nine years, each one logged, each one verified, each one correct. But it was a formality that mattered. The Tuner did not act without the Chief Engineer's permission. It was the chain of command. It was the structure that kept a ship of two kilometers and twelve crew members from descending into chaos.

"Proceed," Grady said.

Tick entered the drive.

He had done this seventeen thousand times before. The procedures were automatic. The adjustments were precise. But today, the vibration was different. The gravitational anomaly was creating a resonance pattern inside the drive that Tick had never felt — a frequency that seemed to push back against his adjustments, as if the drive itself was afraid of what was coming.

Fourteen minutes. That's how long it should have taken.

Twenty-eight minutes passed.

Grady stood in the corridor outside the drive, his enormous frame pressed against the wall, staring at the access panel. He could hear Tick inside — not the Tuner's voice, but the sound of his hands working, the tiny clicks of nano-tools, the hum of the quantum fields. The sounds were muffled by two kilometers of hull and the drive's own electromagnetic field, but Grady could still hear them. They were the sounds of the only person on the ship who could keep them alive.

Forty-two minutes.

Tick emerged. His hands were shaking. Not from fear — from the physical strain of making sub-millimeter adjustments while the drive's quantum field pushed back against him like an ocean current. But the adjustment was complete. The drive had shifted frequency. The Long Look was on a new course.

"How far?" Grady asked.

Tick looked at him with eyes that had seen something inside the drive that no Tuner should have to see — the raw, indifferent mechanics of a universe that did not care whether twelve human beings survived the journey.

"Point zero zero three AU," Tick said. "That should be enough."

It was. The rogue planet — a brown dwarf, larger than any planet in the solar system, drifting through interstellar space like a lost god — passed within 0.033 AU of the Long Look. The ship's external sensors were damaged. The quantum field fluctuated for six hours. But the crew survived. The ship held its course. And Tick returned to the drive six hours later for the next scheduled adjustment, because that is what he did, that is what he had done for twenty-nine years, and nothing — not a brown dwarf, not a standoff between a Chief Engineer and a Tuner, not the existential realization that the fate of twelve people rested on the hands of a three-foot-tall man — had changed that.

In the observation deck, alone, Tick looked out at the stars that had been his sky for twenty-nine years. The ship flew on. The drive hummed. And somewhere inside the ship's walls, two kilometers of superconducting coils glowed with their warm internal light, held together by the hands of the smallest person on board.