Volume One: Heartbeat Detection

Ch. 003| The Silent Forest

8 min read·2,829 words·Published

Voss makes planetfall at the forest's edge, eleven kilometres out by a leverage Vale traded for. Up close the leaves move in unison, their pulse synced to something deep underground. She records the impossible silence, feels a pressure in her ribs, and calls for withdrawal—then spots a single dead leaf.

D+1, 08:32, the Forward Module's lower bay.

Voss was in the Forward Module's standard EVA suit. The two vertical safety straps at her hips were already buckled—that was the standard for a Forward Module landing. But she did what Vale had told her the night before, and buckled the horizontal chest strap as well. The horizontal strap was normally for the long-burn acceleration of an interstellar colony ship; a short Forward Module descent didn't need it.

She hadn't asked why.

Since the night before, she and Vale had stopped asking each other for details. They'd spent seven hours in 14B watching waveforms, watching Volkova's response spectrum, listening to the echo dialogue. Volkova had confirmed the second voice came from more than 37 kilometres underground, 120 kilometres out. On the third coordinate Janus had stopped at six words—I can't estimate it—and pushed no further.

Seven hours later, Vale and Nova held a second meeting in the broadcast bay. Voss wasn't in that one.

She only knew the outcome.

The arrival report still went out before the 24-hour mark. By contract Nova transmitted the SIGNED status code back to Earth. But the report itself carried a 300-word footnote—the gist being that an unconfirmed anomaly had been observed at the surface and was still under review. What the proposal chamber would see was the single word SIGNED. The paper report wouldn't reach Earth for 41 years.

The landing went ahead as planned. But the landing site had shifted—originally the centre of the planned colony, now moved 11 kilometres out to the edge of the forest. Those extra 11 kilometres were Volkova's find: as far as possible from the second voice's coordinate. Eleven kilometres was the maximum safe distance Volkova and Janus had worked out.

Vale hadn't explained the reasoning to Nova. He'd only told her: I want it 11 kilometres out. Nova hadn't asked. The version Voss heard was that in that meeting Nova had said three sentences, start to finish.

She didn't know what the rest was. But she knew one thing—Vale had traded the concession of a footnoted report for the leverage of a landing site moved 11 kilometres out. In Nova's contract, a clean SIGNED and a footnoted SIGNED were not the same thing—between the two ways of signing was the place of Nova's daughter's name in the proposal chamber.

Voss thought: Nova had bet her daughter's berth on the tenth colony ship for Vale. What Vale was betting on his side, she didn't know.

"Doctor, strap in tight." That was the one from the engineering team called Diaz. "The deceleration program on this module is new—Janus only recalibrated it last week."

Voss nodded. All three straps were already fastened.

"Doctor." Park Yu-min—security squad leader, one of the six combat teams under Vale—looked over from the hatch. "Lieutenant Vale gave me a private instruction."

"What?"

"He said, if you call for a withdrawal at the surface, the whole team pulls back, no questions."

"Understood."

"He wants you to know he gave that order."

Voss didn't answer.


The descent went fine.

The deceleration really was new—slower than Voss expected, smoother, like being lowered from above by a hand. The landing site was 11 kilometres out, at the forest's edge. The dust kicked up on touchdown was less than expected.

"Doctor." Park checked his visor HUD at the hatch. "Atmospheric readings outside are normal. Oxygen 21, nitrogen 76, CO2 below Earth's. Temperature 22 degrees, humidity 90."

"Same as the ship's estimate."

"But there's one reading Janus can't find a source for—a trace, very faint, of a metallic smell, like iron just heated red."

"This planet has no natural iron source," Voss said. "No large metal deposits, no recent volcanism."

"The concentration's minute—Janus has it filed below the warning line," Park said.

Voss sealed the first sample box tight.

The hatch opened.

Voss didn't go out first. She let Park and two of the security team go ahead and check the perimeter. Park stood in the hatchway three seconds; through the visor mic his breathing came back—half a beat slower than usual.

"Doctor, it's clear out here," Park said.

Voss stepped out.

The ground was wet, but more viscous than water. She crouched, took a small piece with the sampling forceps and put it in the first sample box, labelling it "surface sludge layer / sample 001 / D+1 08:42."

She looked up at the forest.

The forest was about 40 metres from the hatch. The trees stood 5 to 12 metres tall. The leaves were broad, deep green shot with silver. There was no wind, but the leaves were moving—that much she'd known from her long-range observations aboard the ship.

Up close, they moved more in unison.

Voss stood still. She wanted to verify something.

"Park, give me five minutes of silence. Nobody talks, nobody touches their gear. I'm recording."

Park raised a hand. The other three stopped. Voss took a high-sensitivity recorder from a side pocket of the suit, switched it on, and held it up.

Four minutes, 37 seconds.

The recorder caught only her own team—five people breathing, the faint creak of metal as the Forward Module's engine cooled and settled, her own heartbeat at 82 a minute, amplified by the visor's audio pickup. From the forest, not a single sound of anything alive.

"Done recording."

"Doctor, is something wrong?" Park asked.

"I don't know," Voss said. "It's too quiet."

Park didn't answer, and his breathing didn't go on slowing. Voss noticed Park was waiting.


She walked into the forest.

The first five metres. The shapes of the leaves still mapped onto some early-Earth plant she remembered. As she crouched to examine the venation, she found something.

Something was pulsing inside the veins.

She'd already known this from that long-range sampling aboard the ship. But up close, the rhythm of the pulse was different from what she'd seen on the ship. On the ship it had been averaged, regular. Here, two centimetres from a leaf, she could see where the pulse began—every leaf's pulse started at the petiole end and ran along the veins to the tip, at the same speed and in the same direction.

Every leaf.

Voss shot 30 seconds of high-speed footage and sent it back to the ship.

"Janus, compare wind speed to leaf movement for me."

"Comparing."

Nine seconds later Janus answered on the inner surface of Voss's visor HUD.

"Leaf movement direction is uncorrelated with wind speed. Wind speed: 0.4 metres per second, direction N-NW. Leaf movement direction: fixed E-NE, consistent with all petiole orientations, uncorrelated with the wind vector."

"Oscillation period."

Janus paused a beat before answering—the second time today Janus had paused.

"Same period as the planet's deep pulse," Janus said.

Voss played the line back to herself a second time.

She knew the waveform she'd watched aboard the ship and the leaves in the forest under her feet now were the same thing. The pulse 37 kilometres underground and the leaf movement of the forest in front of her shared one rhythm.

The leaves knew what was happening underground.

Or more precisely: the leaves received instructions from underground.

She crouched, cut three leaves with the sampling forceps, and put them in three different sample boxes. Whether the pulse of the cut leaves in the boxes stayed in sync with the pulse of the leaves on the tree, she'd need electrophysiology back on the ship to verify.

Voss didn't move.

She took a second recorder from a side pocket of the suit, switched it on, and held it up. This time she was listening for something she hadn't paid attention to before.

Four minutes.

What she heard: her own heartbeat. From 82 a minute to 86.

From deep in the forest came a pressure—she felt it in her ribs as a low-frequency resonance, below what her ears could pick up.

Some seventy seconds later, her chest cavity resonated once more.

She switched off the recorder.


She went back to Park.

"Park, pull everyone back to the Forward Module."

"Doctor, is there something out there?"

"I didn't see anything," Voss said. "But this whole forest is alive."

Park didn't ask for details. "Understood."

He raised the ship on his mic.

Vale came through at the sixth second. "Vale here."

"Lieutenant, Voss is requesting full team withdrawal to the module."

"Why?"

Voss cut in. "Marcus, the leaves' oscillation period is synced to the planetary pulse, every leaf moving on the same timing in the same direction. This forest—it's like an organ."

It took Vale four seconds to answer.

In those four seconds Voss could picture what he was doing—he was calculating—whether "it's like an organ" would make Nova reopen moving the landing site back to the colony centre. If the forest really was a single organ, then the 11-kilometre buffer, at the scale of the forest, might be no buffer at all.

But pulling the Forward Module back to the Daedalus needed the agreement of all three of them—her, Vale, Nova. If Nova said no, Vale would have to invoke his safety-officer authority a second time. Use it twice, and he'd have no fallback left.

Vale raised none of this.

"Janus, reassess the landing site's biological threat level."

"Insufficient to reassess," Janus said.

"Why?"

"I can't yet compute a threat model on my end; I need more sampling," Janus said. "But I'm pointing the same way as Dr. Voss—withdrawing the Forward Module is a reasonable recommendation."

Vale didn't answer.

Voss started walking back to the module. Park in front. Diaz behind.

On the way in they'd left a single trail of footprints. On the way back, each of them stepped half a shoe-width to the left of those prints, skirting a few low-hanging fronds. Nobody spoke.

Park, at the front, swept the right-hand forest edge with the corner of his eye every two steps, without turning his head.

Halfway, behind Voss, Diaz drew one breath differently—deeper than usual, faster than usual.

Halfway, she looked back at the tree nearest the hatch.

The leaves were moving. The same direction.

But she noticed one thing. This tree had a single leaf that wasn't moving with the rest. It had stopped at the same wind phase, as if locked there by something.

The veins no longer pulsed.

"Janus, this leaf I'm looking at—what's different about it compared to the others?"

Janus tapped into her visual stream.

Two seconds.

"Dr. Voss," Janus said. "That leaf is already dead."

Voss stopped.

"Within the current scan range, it's the only one that's dead."

【Ch. 003 End · the Daedalus, Forward Module lower bay】

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