Ghost Protocol

He had seven minutes to make a decision that should have taken seven years.

"Oris," Mace said. "Is there anything on this Keth that documents the signal. Anything portable. Anything I can carry out of here."

She moved to the Keth without hesitation — kneeling, examining, running her fingers along the edge of the organic material at its surface with the careful precision of someone who had spent eleven years not flinching at the thing everyone else flinched at. The Keth's light patterns shifted at her proximity, not with alarm, with something that Mace's brain kept trying to map onto words it didn't have a word for.

"Here," she said. She was at the base of the Keth's forward limb, where the organic growth was thickest. She pulled a tool from her salvage kit — a narrow probe, purpose-built from colony equipment — and worked at the edge of the growth. "They carry their standing signals in a biological matrix. A node, anchored to the limb. It's how Keth couriers worked in the early years of the war — before your fleet understood the communication was physical, not broadcast." She worked steadily. "If I can extract the node intact, it carries the full signal. Twenty-two months of transmission data, repeating."

"How long?"

"Three minutes." She didn't look up.

Six minutes on the fuse.

"Okafor," Mace said. "Upstairs. Check Wire's position and report."

"On it," Okafor said. He went to the access shaft and was up it in twenty seconds.

Mace looked at Frost. The rookie was watching Oris work with the expression he'd had during atmospheric insertion — processing something that was bigger than what he'd prepared for. But his hands were steady and his weapon was up and he was doing the thing: staying functional.

"Frost."

"Sergeant."

"The mission objective. What is it."

Frost met his eyes. "Destroy the relay. Restore fleet communications."

"And?"

A pause. "That's it."

"That's it," Mace agreed. "The mission objective has not changed. The charges are set. We destroy the relay in—" he checked the fuse "—five minutes and forty seconds. We get out. The fleet comes back online. That is what we were sent here to do."

"But the ceasefire—"

"Is above my pay grade," Mace said. "But the signal node Oris is pulling out is not above my pay grade. The signal node is intelligence. Carrying intelligence out of an operation is part of my job. And if that intelligence says what Oris thinks it says, I am going to transmit it up the chain the second we're above ground, and the people above me are going to have a very interesting next forty-eight hours."

Frost absorbed this.

"Sir," he said, "does the Keth know the charges are set?"

Mace looked at the injured Keth on the floor. At the light patterns running their slow cycle.

"I don't know," he said.

"It's been running this signal for nineteen months. If we blow the relay—"

"Nineteen months of signal gets transmitted in under a second once fleet comms are back online," Mace said. "Oris recorded three months of it. Between her recordings and the node, the signal survives." He paused. "The relay doesn't have to."

"Got it," Frost said, and the expression that settled on his face was one Mace had seen on people's faces before on their first real operation — not peace, not resolution, but the decision to carry something. To pick it up and walk. "I've got it."

"Good."

"Sergeant." Okafor's voice from above, sub-vocal, urgent. "Wire is down."

The word hit like deceleration. Mace moved to the access shaft.

"Down meaning—"

"Down meaning moving. He's moving. He's coming back." A pause. "He's also bleeding fairly significantly. Estimate three minutes to our position."

"How many fingers?" Mace said.

A longer pause. "...fewer than when he left."

Mace processed this with the same flat efficiency he processed target data. Wire was ambulatory. Wire was inbound. Wire had done the thing Wire said he was going to do and the window was held and the charges were running and whatever had happened in the north corridor had produced the intended result.

"Oris," he said. "Time."

"Ninety seconds," she said, working.

Four minutes on the fuse.

Wire came down the access shaft two minutes later, dropping the last two meters and landing in a controlled roll that was slightly less controlled than his usual controlled rolls. His left hand was wrapped in a field dressing that was doing insufficient work. He looked at the relay chamber — at the core with the charges, at the Keth on the floor, at Oris working at the limb — with the unreadable calm he brought to everything.

"Nice room," he said.

"You're losing blood," Okafor said, already at him, medikit open.

"I'm aware."

"How many?"

"Two Warforms and one patrol leader," Wire said. "The patrol leader was unexpected. They had a secondary responding." He held his hand out flat for Okafor. "I borrowed a structural support at the north junction. The tunnel section is no longer navigable. Which also means we should leave."

"Working on it," Oris said. She came away from the Keth's limb with a node in her hand — small, dense, the bioluminescent material contained in something between a cyst and a seed, pulsing with the slow regularity of the standing signal. She held it out to Mace. "Full signal. Don't crush it. Keep it at body temperature."

He took it and secured it in his inner breast pocket. Through the armor he could feel nothing, but he was aware of it the way you're aware of something important.

The fuse hit ninety seconds.

"Out," he said. "Now. Wire, can you climb?"

"I can climb," Wire said.

"Frost, behind him."

They went up the access shaft in forty seconds. Through the maintenance corridor in two minutes. Oris had the route memorized and moved like someone who had run it before, which she had, because thirty-one people had been living in this tunnels for eleven years and survival required knowing the layout in the dark.

Sixty seconds on the fuse when they cleared the maintenance access and came up through the dome's perimeter crawl tube into the methane wind of Titan's surface.

Forty seconds when they put three hundred meters between themselves and the dome's outer wall.

Twenty when Mena told them to get down.

Zero when the relay went.

The dome didn't breach — the charges were shaped and Mena didn't make mistakes with shaped charges — but the shockwave through the dome's structure was visible, the organic material rippling, the blue-green light stuttering across the dome's surface and then steadying and then, in a wave that started at the relay's position and moved outward like a tide going out, dimming. Not going dark. Just dimming. The Keth inhabitation patterns changing, reforming, stabilizing around the absence of the relay core.

Mace was already on the burst transmitter.

"Ghost actual to fleet command. Relay is down. Comms should be restored within — " he checked the technical estimate in his briefing package "—six to twelve minutes as the jamming field dissipates. Message follows." He pulled the burst data package from his visor's record — everything Oris had told them, the coordinates, the ceasefire hypothesis, the standing signal, the node in his pocket. He compressed it. He transmitted it. "Attached intelligence from embedded civilian asset Dr. Yael Oris, New Carthage xenobiology. Command priority. This is not a standard after-action item. This is a first-contact document. Please treat accordingly."

He released the transmit button.

The Titan wind moved across the methane plains. The dome of New Carthage glowed, changed, continued.

Okafor had finished his second pass on Wire's hand. "Two fingers," he said, quietly. "The distal phalanges. I can pack the wounds and stabilize, but he needs surgery within eighteen hours."

"Extraction is in sixteen," Mace said.

"Then we're good," Wire said.

"You're not good," Okafor said. "You have no two fingers."

"I still have eight," Wire said.

"I want you to think carefully about whether that is a reassuring statement."

"It's sufficient," Wire said, which was the Wire version of a shrug.

Dr. Oris was standing twenty meters from the group, looking at the dome. She'd left thirty-one people inside it. She would go back, when it was clear to go back, because her people were there. Because she had committed to that eleven years ago and the math hadn't changed.

Mace walked to her.

"The signal gets to fleet command in the next hour," he said. "People who can act on it will have it."

"That's all I can ask," she said. She wasn't looking at him. "Eleven years. And it turns out they've been trying to talk for almost two of them." She paused. "I don't know if your command will act on it. I don't know if their command will accept that the message was received. There are eleven years of momentum and dead and reasons on both sides to keep going."

"There are," Mace said.

"But now someone knows," she said.

"Now someone knows," he said.

The fleet came back online eleven minutes later. Mace watched it in his visor — contact icons lighting up across the tactical display, one after another, ship signatures resolving from the void, the vast dark of the outer system becoming legible again. Seven hundred ships, operational, suddenly able to see. The burst traffic was immediate — comms coming online, position checks, status requests, the machinery of a fleet restored.

And somewhere in that machinery, moving up a chain of command that Mace would never see, a compressed data package with a xenobiologist's eleven years of work attached.

He looked at Frost, who was standing quietly at the edge of the group with the expression of someone who had arrived at this particular day as a private who lied about his age to enlist and was leaving it as something else. It was hard to name exactly what, but Mace had seen it before, on people who had picked something up and carried it.

"Ghost Protocol," Frost said. It was what the mission had been designated in the briefing. "I thought that just meant the comms silence on insertion."

"It did," Mace said. "Now it means something else too."

Frost nodded slowly. He looked at the dome, then at the sky, where the transport ship would come in sixteen hours.

"Sergeant," he said. "Do you think they'll listen?"

Mace thought about the node in his breast pocket, warm against his armor. He thought about the relay running its forty-three-second sequence for nineteen months into the dark, waiting. He thought about the Keth on the chamber floor, light patterns running, looking at five humans in the place where its message had been broadcast for a year and a half.

"I don't know," he said.

It was an honest answer. He had learned, on Ganymede and the Jovian stations and in eleven years of a war that had taken enough of the people he'd worked beside, that honest answers were the only kind worth giving.

He looked at the dome.

The lights inside it pulsed.

He kept watching until extraction came.