The most important word of his life, Rat would not have to say — he'd have to think it.
The orbital center on sublevel seven was quiet, almost templelike. The domed ceiling — ten meters. Along the walls, holo-projections of orbits: dozens of satellites, hundreds of tracks crawling slowly across the black. There was no smell of coffee here, or sweat, or old metal. Here it smelled of space.
At the center — Orbit and Rat. Alone.
A model of a satellite hung above the terminal. ORBIT-7. Small, six panels, a gold body. A thin resonance ring around its core pulsed slow and even.
"Sit," Orbit said.
Rat sat. Orbit spoke quietly — not with the haste of a man afraid of being interrupted, but with the haste of a man who wants to pass on everything and knows there's little time.
"Orbit-7. Launched yesterday at three in the morning. Went through the portal automatically, on a special thirty-second cycle. It's already over there. Geosynchronous orbit above the world G-7. Waiting for you."
"How many people know it's there."
"The Chancellor. Raines. Valkyrie. The boss. Me." A pause. "Now you. Not Vance. Not Cornelius."
Rat understood the weight of that list. This wasn't a secret kept from the enemy. It was a secret kept from their own. And who Orbit named — and who he chose not to — told Rat more about the real balance of power on Earth than any briefing.
Orbit activated a hologram — the satellite's internal structure, resonance lines running along the walls of the portal.
"Listen closely. The gold portal is a tunnel through space. We don't send the signal through it. We send it along it. Along the resonance lines of the gold material. The signal doesn't go into the portal. It licks along its surface."
"That's brilliant," Rat said. And meant it: he knew an elegant engineering solution when he saw one.
"I came up with it seven years ago. The Chancellor approved it. Vance took the credit." The corners of Orbit's mouth lifted a micro-motion. Bitter. "That's why I'm Orbit, and he's a genius. I do the work. He sells it."
Orbit handed Rat a device the size of a palm — a gold rim, a dark center.
"A resonance receiver. Activation — not voice, not gesture. Thought. The device is synced to your lenses. It wakes when you think one word."
"Which one."
Orbit, quietly:
"'Earth.'"
Rat thought it. His lenses flared:
ORBIT-7 LINK — ACTIVE / SIGNAL 98% / TWO-WAY
"It works," Rat said.
"It always will. The channel is perfect: the resonance doesn't fade, can't be jammed by distance, doesn't depend on the weather of that world. As long as the gold portal stands — the link stands."
A pause. And then Orbit said the thing that — as Rat understood later — was the real reason he'd been called here:
"Memorize this, Rat. Word for word. Because when the link goes — and if it ever goes, it will be the worst moment of your life — you need to know one thing. This channel cannot be broken. It can't be jammed by distance, or a storm, or alien technology. So if it goes silent — don't think it broke."
Orbit looked him in the eye.
"It was switched off. And it can only be switched off from here. From this side."
Rat said nothing. He was the youngest on the team, and his job had always been to look up and see what others couldn't. Now, for the first time, he felt what it was to send up not a drone, but the truth.
"A session is forty seconds," Orbit went on. "After that the portal wobbles — wait two minutes, then call again. And one more thing: through this channel Oreon can reach you. Faintly. At limited power. But it reaches."
"So Oreon will be with us."
"Not with you. He'll catch the edge of you. Call him — he answers." Orbit paused. "Officially, the expedition is going to a world where Oreon is silent. That's what the Chancellor wants everyone to believe. But you know the truth."
Silence. One more secret into the same palm as the others. Rat was beginning to understand that his job on this mission wasn't drones. His job was to be the one person holding all the threads of the truth — and never tangling them with one another.
Orbit stood. Held out his hand. Rat shook it — hard.
"If it's dark over there — call. I'll be listening. Without a break."
"I'll call."
Silence. There was something fatherly in the way the older signalman handed his work to the younger one, who would carry it where Orbit himself would never go. Seven years of work, credited to another man's name — and here it fit into a single palm and a single word.
Rat closed his fist around the receiver. Small. Warm. The only thread between two worlds.
"Earth," he thought once more, just to feel it wake.
And the light in his lenses told him home was still there.
For now.