Chapter 19
TOMMY
Echo Base goes dark, and the silence where the server hum used to be is the loudest sound I have ever heard.
The hum has been the baseline frequency of my existence for years, a constant so deeply embedded in my auditory processing that I stopped hearing it the way you stop hearing your own heartbeat.
Sleeping. Working. Briefings, meals, late-night gym sessions. A low-frequency confirmation that the thing I built was alive and running and keeping the people I love safe.
Its absence is a void with teeth.
Emergency lighting kicks in four seconds after the primary systems fail. Red. Dim. The kind of light designed for evacuation, not operation, casting the workspace in a color that turns every surface into a wound.
My screens are dead. Dar's screens are dead. The diagnostic panels, the communication relays, the security feeds that let me watch every corridor and every entrance and every approach to the mountain that holds my life inside it.
All dark.
My hands are flat on a keyboard connected to nothing, and the uselessness of the position, the utter futility of a man sitting in front of dead screens in a dead room, hits me with a weight I haven't felt since the first time I watched a teammate die through a helmet feed and couldn't do anything except keep the comms channel open.
"Tommy." Dar's voice from beside me. Steady.
Flat. The clinical register she defaults to under pressure, and right now I'm grateful for it because her steadiness is the only signal I can calibrate against. "Emergency backup server.
South corridor. Independent power supply, isolated from primary grid. "
I know the backup exists. I built it. A standalone system designed for exactly this scenario, air-gapped from the main network, running on an independent generator with enough fuel to keep it operational for days.
It's limited. No external communications. No security feeds. Basic processing capability. Enough to run diagnostics and not much else.
But it's something. And something is more than nothing, and nothing is what I'm looking at on every screen in this room.
"South corridor," I repeat. My voice sounds wrong. Thinner. Stripped of the resonance that comes from the confidence of sitting in the center of a functional system.
I try for a joke. The instinct is so automatic that the words are forming before the rest of me catches up.
Something about backup plans and first dates.
The joke reaches my mouth and dies there, unfunny and insufficient, and the failure of my own coping mechanism to engage is more frightening than the dark.
"Let's move."
We navigate the corridors by emergency lighting. Red-lit stone walls that I've walked a thousand times feel alien now, the familiar geometry distorted by color and silence and the absence of the environmental systems that usually regulate temperature and airflow.
The air is already getting stale. Without ventilation, the mountain's rock will start absorbing the available oxygen. The knowledge of it sits behind my ribs alongside everything else I'm carrying.
Dar walks beside me. Her hand brushes mine in the dark, a contact so brief it could be accidental if either of us believed in accidents.
Her fingers are cold. Her breathing is even.
In the red emergency light, her face is all angles and shadow and focused determination, and I want to stop walking and hold her and tell her that whatever happens in the next few hours, the last few days have been the closest thing to being fully alive I've ever experienced. I don't stop. I don't tell her.
She's functioning at a level that I'm trying to match and falling short of, because her systems are internal and mine just went offline.
Kane meets us at the junction of the south corridor. Flashlight in hand, face carved from the same stone as the walls, utterly unreadable. Behind him, Dylan. And behind Dylan, Sarah, carrying a laptop and a coil of ethernet cable.
"Report," Kane says.
"Primary systems are down. Communications, security, environmental controls.
" I list the damage the way I'd list casualties, each item carrying a weight that makes the next one heavier.
"The cascade attack hit the central comm relay during the synchronization window.
Marsh timed it to exploit the handshake protocol between primary and backup channels.
When the relay went down, it triggered a cascading failure through every connected system. "
"Can you bring it back?"
Willa's voice comes through the backup comm before Kane can respond. Calm. Clinical. The professional register of a doctor running triage in conditions that aren't designed for triage.
"Medical bay is on emergency power only.
I've got roughly ninety minutes before the temperature-sensitive medications exceed viable storage range.
The epinephrine and the broad-spectrum antibiotics will hold.
The antivenoms won't. The surgical anesthetics won't." A pause, brief enough to be a breath and long enough to carry the weight of a calculation no one wants to make.
"I'm moving what I can to the cooler in the communal kitchen. It'll buy time, not a solution."
Kane absorbs this without visible reaction, but his hand moves to the wall beside him, pressing flat against the stone, and the gesture is so uncharacteristic that I recognize it for what it is: a man grounding himself against the physical reality of his mountain while the systems inside it fail.
Then Khalid's voice. Thin and steady on the backup channel, broadcasting from somewhere deeper in the base.
"I'm in the east corridor. The blast doors sealed when the power dropped. I can't get through to the main section."
My chest tightens. The blast doors are designed to compartmentalize the facility during a catastrophic breach, isolating sections to prevent cascading damage.
They sealed automatically when the power grid failed, which means they're functioning exactly as I designed them to, and the kid I've been teaching routing protocols is alone in a sealed corridor in the dark because my failsafe worked.
"Khalid, are you hurt?"
"No. I have a flashlight. And Odin." A pause. The sound of a dog's claws on stone, shifting weight. "How long?"
The question is steady. Controlled. The voice of a young man who has learned that panic doesn't open doors and patience sometimes does, and the composure in it is worse than fear would be because the composure means he's been in worse situations and survived them by staying exactly this calm.
"We're working on it," I say, and the words taste like every promise I've ever made to the people on the other side of my screens. True in intent. Uncertain in outcome. "Stay on this channel. I'll get the doors open."
"Copy."
The word comes back in the cadence I taught him.
Willa's voice cuts through the channel again.
"Tommy, Khalid's east corridor connects to the secondary ventilation loop.
With the environmental controls degraded, the backup ventilation in that section is running on residual airflow only.
If the primary system doesn't restore within two hours, the oxygen levels in that sealed section will drop below safe concentration. "
The words land in my chest like a physical blow. My failsafe sealed the east corridor. My blast doors locked a kid in a section with finite air. The system did what I designed it to do, and what I designed it to do is suffocating someone I care about.
"Khalid, listen to me." I keep my voice level.
Steady. The voice I use when Mercer's in a corridor and the contacts are closing and the margin between instruction and catastrophe is measured in seconds and tone.
"The air in your section is going to get thinner.
You're going to feel it in about an hour, maybe less.
Headache first, then fatigue. When that happens, I need you to lie down.
Flat on the floor. The freshest air in a sealed space settles lowest. Odin will lie down with you.
You stay there until I get the doors open. "
"Copy." The same cadence. The same steadiness.
And underneath both, the faintest tremor that tells me Khalid understood the subtext of what I just said: the air is finite and the timeline is real and the man responsible for the systems that sealed him in is asking him to trust that the same man will get him out.
Dar's fingers accelerate on the keyboard beside me.
I glance at her screen and see what she's doing: she's reprioritizing the system restoration sequence, moving the blast door controls and ventilation to the top of the recovery queue ahead of communications, ahead of security feeds, ahead of everything except the backup server itself.
She didn't ask. She heard Willa's assessment, calculated the priority, and started the work.
"Ninety minutes," she says without looking up. "That's my target for door control restoration. I need you to hold the backup server stable while I reroute power to the east corridor ventilation independently of the primary grid."
"Can you do that?"
"I can bridge the backup generator's output to the ventilation relay in the east section if you give me physical access to the junction box in the south corridor maintenance closet. It's a manual connection. Cables and switches, not code."
"That's a two-person job."
"Sarah can hold my offensive position for ten minutes.
She can't run the full counter, but she can maintain the perimeter.
" Dar looks at me, and her eyes in the emergency red are dark and fierce and carrying a calculation that has nothing to do with systems and everything to do with the kid on the other side of a blast door whose air supply is counting down.
"Ten minutes. We go to the junction box, bridge the ventilation, and come back. Khalid gets air. We get time."