Chapter 3: The Signal's Source

Three days beyond the boundary, the signal changed.

Not evolved — changed. The layers that Chitra had been documenting — the base-twelve mathematics, the geometric proofs, the coordinates tracking our flight path — they stopped. Simultaneously. As if whoever was sending the signal had decided that the preamble was over and the: conversation could begin.

What replaced the mathematics was: sound.

Chitra played it on the bridge speakers at 06:00 ship time, waking me from a half-sleep at my console where I'd been dozing with my cheek pressed against the navigation screen, the screen's warmth leaving a faint green imprint on my skin. The sound filled the bridge like smoke — not loud but: pervasive. Impossible to ignore. Impossible to locate. Coming from everywhere and nowhere, the way sounds do in dreams.

It was: a voice. Not human — not in any recognisable language, not formed by a mouth that operated the way human mouths operated. But unmistakably: a voice. Something was speaking. Something was using vibrations in the electromagnetic spectrum to form patterns that carried: meaning. Not meaning I could decode — but meaning I could feel. The way you feel music in a language you don't speak. The way the Nakshatra temple chants resonated in your chest even if you didn't know the words.

"What is that?" Kabir asked. He'd arrived on the bridge in his sleep clothes — a Solarfleet-issue thermal suit that he wore backwards because, as he'd explained once with the seriousness of a man discussing structural engineering, "the zipper scratches my throat and my throat is: important for complaining, which is: my primary skill."

"The signal," Chitra said. "It's transmitting audio now. Structured audio. Vocal patterns."

"It's talking to us," Om said. He stood near the doorway, holding his morning chai — chai from the ship's dispenser, which produced a liquid that was technically chai in the same way that a photograph of the ocean was technically: the ocean. Approximation without substance. But Om drank it every morning because ritual mattered to Om more than: flavour.

"It's talking," Chitra confirmed. "Whether it's talking to us specifically or broadcasting generally — I can't determine. But the patterns suggest: directed communication. There are pauses. The kind of pauses that occur in: dialogue. As if the signal is waiting for: a response."

"Have we responded?" Rudra asked.

"No. Standing orders from the High Council are: observe only. Do not transmit."

"The High Council isn't here. The High Council is on Allura, nine days away at maximum burn. The High Council gave us a directive that assumed conditions we are no longer: operating under. The signal is talking. To us. And we're: ignoring it."

The tension in Rudra's voice was: new. Four years I'd served with him and I'd never heard him question the High Council. Rudra was: institutional. He believed in the chain of command the way Om believed in ritual — not because the chain was always right but because the chain provided: structure, and structure was the only thing that kept five people in a metal box in the void from: unravelling.

"Captain," I said. "If we transmit, we confirm our presence. Right now, whatever is out there might be guessing. Broadcasting to a wide area. If we respond, we become: specific. A target."

"We're already a target, Esha. Chitra just told us the signal has been tracking our exact coordinates since launch. They know where we are. They know where we're going. The only thing they don't know is: who we are. And if we don't tell them, they'll decide for themselves. In my experience, being defined by others is: always worse than defining yourself."

The logic was: sound. Frustratingly sound. The logic of a man who'd survived thirty years by understanding that silence was sometimes: not caution but provocation. That the thing you didn't say could be more dangerous than the thing you: did.

"What would we transmit?" Chitra asked.

"The same thing. Mathematics. Our base-ten counting system. Basic geometric proofs. Enough to say: we received your message. We understand its: structure. We are: coming."

"That's ambitious," Kabir said. "Most first dates, you don't lead with 'I am: coming.'"

Nobody laughed. Which meant: everyone wanted to laugh but the situation didn't permit it. The specific tension of a crew that uses humour as: pressure release and that is currently: pressurised beyond the valve's capacity.

Rudra made the call. He transmitted.

The response came in forty-seven minutes.

Forty-seven minutes — the time it took for our signal to travel to the source and for the source to reply. Which meant the source was: close. Approximately twenty-three light-minutes away. In cosmic terms: next door. In psychological terms: too close.

The response was: not mathematics. Not sound. Not coordinates.

The response was: an image.

Chitra projected it onto the bridge viewscreen and we stared at it — five humans staring at a picture sent by something that was: not human and that was showing us: a planet.

A blue-green planet. With oceans. With continents. With the unmistakable swirl of weather systems that suggested: atmosphere. Life-supporting atmosphere. The kind of planet that the Nakshatra spent centuries searching for. The kind of planet that the ancient texts described as: Earth.

"Is that —" I started.

"It's not Allura," Chitra said. "The continental configuration is wrong. The ocean-to-land ratio is different. This is: a different planet."

"Could it be Earth?" Kabir asked. The question that everyone was thinking. The question that connected this image to the myth, to the origin story, to the three-thousand-year-old narrative that said: we came from a blue-green world and we lost it.

"The myth describes Earth as blue-green," Chitra said carefully. "This planet is: blue-green. But blue-green planets are not: unique. Water plus photosynthetic organisms produces: blue-green. This could be any habitable world."

"But they sent it to us," Om said. "In response to our transmission. They received our mathematics and they replied with: a planet. That's not random. That's: intentional. They're telling us: this is where you're going. This is what we want to: show you."

"Or: this is what we want to: lure you toward," I said. The navigator's caution. The caution that Rudra valued and that I felt, at this moment, was: insufficient. Because the image on the screen was: beautiful. The planet was: beautiful in the specific way that home is beautiful — the beauty that bypasses the intellect and reaches the part of you that remembers: belonging. The part that the Nakshatra built temples to honour. The part that prayed: may your soul find its way back to where you belong.

"Set course," Rudra said.

"Captain —"

"Set course for the source of the signal, Esha. We investigate. We report. We return. That's the directive. And the signal just gave us: a destination."

I set the course. My fingers on the console — the green-lit console, the colour of life — entering coordinates that would take us toward a planet we'd never seen, sent by something we'd never met, in response to a conversation we'd just: started.

The course was set. The Orka adjusted heading. The engines hummed — the low, continuous hum that was the ship's heartbeat, the sound that you stopped hearing after a week in space because the body absorbed it, made it part of your own rhythm, the way Mumbaikars stop hearing traffic because traffic becomes: the body's bass note.

Twenty-three light-minutes. At The Orka's maximum speed: six days.

Six days to the signal's source. Six days to the planet. Six days to: whatever was waiting.