The Empty Reservoir

Forty minutes into the tunnel, everything smelled like a swimming pool's ghost.

Damp concrete. Rust. Something green growing in the cracks that Jonas had already named Kevin. Priya walked in front because she had the array schematics on Maya's phone, which meant she was technically the one who would get eaten first, which she announced was fine because, quote, someone has to be the map and the appetizer.

Nobody laughed. The tunnel was not a laughing place. Even Kevin the mold looked serious.

Maya kept one hand on the wall and the other on the attic box tucked under her arm. Inside it, wrapped in Daniel's handkerchief, the brass override key knocked softly against the cardboard with every step. Each knock sounded like a tiny clock. Like time itself was counting.

That was when the pipes started groaning.

Not dripping. Groaning. Deep in the walls, metal flexed and shuddered, and a low vibration crawled up through the soles of Maya's sneakers and settled in her teeth. Jonas froze mid-rivet-count.

— Tell me that was your stomach, — Maya whispered.

— My stomach does not do that, — Jonas whispered back. — That's the spillway system pressurizing. They started something.

Priya held up the phone. The schematics were gone; she had switched to the telemetry page she had bookmarked from the observatory's old server, the one that was supposed to be offline. It was not offline. Two red bars glowed on the screen.

GATE 1: OPEN. GATE 2: OPEN.

— The test, — Priya said. — It's early. Twenty minutes is now... she did the math the way only Priya can do math, in one breath — four. Four minutes, maybe less.

Maya's throat closed. The plan had been: reach the array, turn the key, send the override, stop the test. The plan had not included the test starting before they got there.

Then the tunnel bent left, and there was the door.

It was not much to look at — dented steel, a brass plate at eye level with engraved initials: B. REYES. Daniel's name, worn smooth by years of thumbs. Below the plate, two holes.

One was a keyhole. The brass key slid into it like it had been dreaming of it.

The other was not a keyhole at all.

— Is that... an audio jack? — Jonas leaned in, phone light trembling. — A headphone jack. Your grandfather's idea of security was a mixtape?

Taped to the inside of the doorframe, yellowed and curling, was a note in Daniel's cramped handwriting. Maya read it twice before her brain believed her eyes.

SHE MUST BE LISTENING WHEN YOU TURN IT.

— Listening, — Priya repeated slowly. — She. Not the key. She must be listening.

Maya's hands went cold. — The signal. The 3.33 loop. The array has to be receiving the future broadcast at the exact moment the key turns. It's a timestamp lock. Past and future, aligned, or the override doesn't fire.

— That's insane, — Jonas said.

— That's Daniel, — Maya said. Her grandfather had hidden his house key inside a fake rock shaped like a slightly different fake rock. Insane was his love language.

But the array room was on the other side of the door, and the door needed the signal, and the signal needed the array powered, and the array needed —

— Give me your charger, — Jonas said to Priya, and she didn't even argue, which told Maya exactly how scared they all were. Jonas knelt, stripped two wires with his teeth — Priya made a wounded noise at the teeth — and spliced the portable charger into the array's auxiliary port while Maya threaded the brass key into the left keyhole and held it there, waiting.

Then, because there was no better option, Jonas jammed his earbuds into the audio jack and pressed his phone against the door and cranked the hand generator, and Maya tuned the receiver on the array panel to 3.33 MHz.

Dead air.

One second. Two. Maya's heart was so loud she was sure the microphones could hear it.

Then — not the loop. Not the warning they had memorized. A LIVE signal. Gasping. Ragged. Future Maya, twenty-seven years old, eleven years away, sounding like she was running.

— ...hear me, don't let him— listen, the reservoir was drained in 2031, it's not water, Maya, it's not water, it's—

Static. A scream of interference. Gone.

Maya stared at the speaker. Jonas stared at Maya. Priya stared at the telemetry, where GATE 3 was now blinking amber.

— The reservoir was drained, — Priya said very quietly. — In 2031. The loop said the test would flood the lower town. But if there's no water in the reservoir...

— Then what floods a town? — Maya finished.

And in that moment the old intercom speaker above the door crackled to life, and a calm, polite voice said:

— Maya. Jonas. Priya. This is David Okafor. I'm standing outside the array room door. Nobody is getting hurt tonight. But the pressure test starts in ninety seconds, key or no key.

Quick question, reader: what do you do when the villain is polite?

Maya's hand tightened on the brass key. The 3.33 speaker hissed. Somewhere in the hiss, underneath it, the loop was cycling back around — ...the lower town will— ...the lower town will—

— On my mark, — Priya whispered, eyes on the loop. — Three. Two—

The loop hit the phrase. — ...the lower town will FLOOD—

— NOW!

Maya turned the key.

The lock clicked. The door hissed. Cold air spilled out of the array room, smelling of ozone and old dust and something sweet, like burnt sugar —

— and on the other side stood a woman in a Harlow Energy jacket, holding a phone to her ear, mouthing one word.

Run.

Her voice — older, ragged, out of breath — was the same voice as the loop. The same voice as the gasping live signal. It was Maya. Twenty-seven-year-old Maya, standing eleven years too early, in a Harlow jacket, with a dead phone in her hand and blood on her cuff.

— You're early, — future Maya said. — You're not supposed to be here for nine more years.