The Night Shift

The Night Shift

Fifteen days had not been enough to change the air in Nangang. The same solvent smell clung to the corridor walls, and the same fluorescent panels buzzed overhead, one of them still flickering at the far end near the storage room. I had come back at ten at night because the overnight work had piled up past what the day shift could absorb, and because Sean had stopped asking whether I could be there.

I let myself into the development bay and found the lights already on. Sean stood at the catheter test setup, his back to me, one hand on the pressure regulator. The actuator housing sat open on the bench beside him, its discoloration from the earlier heat spike still visible under the work light. He had not heard me come in.

“You’re early,” I said.

He didn’t turn. “The audit data needs to be clean by morning. The review board reconvenes next week and Victor wants the catheter package before that.”

“Victor wants the package before the review board meets. That’s not the same thing.”

Now he looked at me. His Stanford hoodie had a fresh stain on the sleeve, something dark that could have been coffee or solvent. “It’s the same thing if the review board won’t look at it without the investor’s confidence. You know that.”

I set my notebook on the nearest empty surface and walked over to the bench. The regulator was a standard model, the kind that limited flow to the test chamber during calibration runs. I could see where the bypass had been fitted, a short length of tubing that routed around the safety valve entirely. It was not hidden. Sean had not tried to hide it.

“What does that do?” I asked, though I could already see.

“Cuts the calibration cycle by forty minutes per run. We need six runs tonight.” He tapped the tablet beside him. “The valve tripped twice last week on false positives. The sensor threshold is set too conservatively. I checked it.”

“You checked it against what?”

“The manufacturer’s spec sheet.”

I did not ask which manufacturer. The cells for the consumer line had come from Shenzhen two days ago, packed in foam that still smelled of the factory, and Sean had signed for them himself. I had seen the invoice on his desk that morning, a single page with a company name I did not recognize and a unit price that was forty percent below the quote from our regular supplier.

“The consumer line test is still scheduled for tonight,” I said. “Those batteries haven’t been through verification.”

“They’re standard cells. The band draws less than half an amp.” He turned back to the regulator. “Linnea can run the materials analysis on the actuator next week. Right now I need the audit data.”

I opened my notebook to the page where I had written the stop criteria I had promised Linnea and Dr. Chen after the last session. The list was short. I had meant to circulate it, to get signatures, to make it binding. Fifteen days of rebuilding the catheter documentation under the stop-order’s constraints, and I had not done it.

“Sean, we agreed on written stop criteria before the next test.”

“And we’ll have them. After tonight’s data is in.” He said it without looking up, the same tone he used for delivery schedules and supplier lead times. A problem already solved because he had decided it was solved.

My phone buzzed in my pocket. I stepped away from the bench to check it. Victor Chen’s name on the screen, and a single line: Call when you can. Not urgent but time-sensitive.

I walked to the far end of the bay, past the workstations where Kai and Wei would be setting up later, and dialed.

Victor answered on the second ring. “Chloe. Thank you for calling back.”

“It’s late. What do you need?”

“I’ve been reviewing the progress reports Sean sent over. The catheter rebuild is on track, which is good. But I want to make sure you understand the full picture.”

I leaned against the wall, the concrete cool through my shirt. “The full picture being the term sheet you sent three weeks ago.”

“The term sheet reflects the immediate condition. What I need you to know is that Horizon Apex’s actual mandate for this Series B expects Aetheris to preserve both products. The catheter and the biometric band. The dual listing is central to our valuation model.”

I looked across the bay at Sean, still bent over the regulator. He had not heard any of this. Victor had called me, not him.

“Victor, the band’s development has been running on a skeleton crew since the stop-order. We lost four people. We’re running overnight tests with cells that haven’t been through verification because there wasn’t time to source from the regular supplier.”

“I’m not asking for a timeline on the band tonight. I’m telling you what the mandate requires so that you can plan for it. Sean has been focused on the catheter, which is understandable. But the band cannot be allowed to stall.”

I wanted to ask him why he was telling me this instead of Sean. I did not ask, because I already knew the answer. Victor had watched Sean push back against every constraint the stop-order imposed, and he had decided that the operations lead was the safer channel for a message that required patience.

“I understand,” I said.

“Good. I’ll send the revised milestones by morning.” The line went quiet for a moment. “Chloe. This stays between us until I have Sean’s buy-in on the catheter data. I need you to hold it.”

I ended the call and stood there with the phone in my hand, the screen still warm. The bay hummed around me, the ventilation running at low speed, the work lights casting hard shadows across the floor. Sean had moved on from the regulator and was now calibrating the pressure sensor, his movements quick and certain.

I did not tell him what Victor had said.

The auditor arrived at eleven. I was at the logistics station, updating the test schedule to reflect the overnight runs, when I heard the bay door open and a voice I did not recognize ask for the person in charge.

He was a short man in a dark jacket, carrying a tablet and a laminated badge from the TFDA’s compliance division. He introduced himself as Inspector Lin and handed me a notice of unannounced inspection, the paper still warm from a portable printer.

“We’re conducting a spot check on bench conditions and documentation,” he said. “This is a standard procedure during an active stop-order. I’ll need access to the full bay.”

Sean looked up from the catheter setup. His face went very still, the way it did when a supplier called with bad news and he was calculating how much it would cost him.

“Of course,” I said. “I’ll walk you through.”

I led him past the testing benches, the storage racks, the calibration station. He checked each workstation against a list on his tablet, pausing to photograph serial numbers and inspect cable routing. His manner was polite and thorough, the kind of thoroughness that came from doing this a long time and knowing what people tried to hide.

We reached the third bench from the wall, the one nearest the storage room, and he stopped.

“This bench has structural damage,” he said. He crouched and ran a finger along the underside of the work surface. “The support bracket is cracked. When was this reported?”

I looked at the crack. I had seen it before, three weeks ago, during another inspection, the one that had preceded the stop-order. I had covered it with a clamp and a note to order a replacement, and then the stop-order had come and the departures had started and I had never placed the order. The clamp was still there, hidden by the equipment stacked on top.

“I don’t have a record of a report,” I said. My voice came out flat and even, the way it did when I was holding something in.

“I’ll need to note that.” He made an entry on his tablet. “Damaged equipment that hasn’t been logged is a compliance issue. It will need to be addressed before the stop-order can be lifted.”

Sean had walked over while the inspector was crouched. He looked at the bench, then at me, and I saw him register the clamp, the position of the equipment, the way I had not answered the question directly. He said nothing. The inspector moved on to the next station, and Sean followed him, and I stood there with the crack and the clamp and the weight of everything I had not told anyone.

Kai and Wei arrived at midnight. Kai had his lab coat on before he was through the door, the marker already behind his ear. Wei carried his labeled binder under one arm and a thermos in the other hand.

“Evening, Chloe,” Kai said. “Sean said we’re running six catheter calibrations and the band discharge test. Is that right?”

“That’s what’s scheduled.”

Wei set his binder on the workstation and opened it to a fresh log page. “The cells for the band test. Have the verification results come back yet?”

I looked at Sean, who was still at the catheter setup. He did not turn around.

“They’re standard cells,” I said. The words tasted wrong in my mouth, a borrowed answer I had not chosen.

Wei hesitated, his pen poised above the log. “Standard cells still need a verification run before a discharge test. That’s the protocol.”

“I know the protocol.”

He looked at me for a moment longer, then wrote something in the log. I did not ask what. I should have stopped the test right then. I should have called Linnea and asked her to come in and verify the cells herself. I should have told Sean that the overnight work could not proceed until the batteries had been through the same scrutiny we were demanding for the catheter.

I did not do any of those things. I went back to the logistics station and updated the schedule to reflect the inspector’s findings, and I told myself that the band test was low-risk, that the cells were standard, that Sean had checked the spec sheet. I told myself the same things I had been telling myself for thirty-five days, and I made them sound reasonable because I needed them to be.

Kai set up the band test at the far end of the bay, near the storage room. Wei ran the preliminary checks, calling out voltages and current draws while Kai noted them in the log. The band itself sat on the testing cradle, its green pulse steady, the same light I had seen on the first morning I unlocked the office in Neihu. The founding promise, still blinking, still waiting to be kept.

I was at the logistics station when it happened. The sound was not loud. A sharp crack, like a transformer blowing, and then a deeper sound that I felt in my chest before I understood what it was. The lights flickered and went out, and the emergency panels kicked in, washing the bay in red.

Smoke was already pouring from the far end of the bay. Thick, chemical, the kind of smoke that meant burning plastic and worse. I ran toward it, past the toppled equipment, past the calibration station where Sean was already shouting something I could not hear over the alarm that had started shrieking.

The band test station was gone. The bench had buckled inward, the cradle blown apart, and the band itself was a blackened smear on the floor. Kai lay face-down near the storage room door, his lab coat singed, the marker still tucked behind his ear. Wei was slumped against the wall, his binder open beside him, the log page half-filled and curling at the edges from the heat.

I knelt beside Kai and turned him over. His face was untouched, his eyes half-open, and for one impossible second I thought he was going to blink and ask me if he had understood the instruction correctly. He did not blink. I pressed my fingers to his wrist and felt nothing, no pulse, no warmth except the heat still radiating from the ruined bench.

Sean was at my side. He had his phone out, already dialing emergency services, but his hand was shaking so badly he had to try twice. I heard him give the address, heard him say the words “explosion” and “two down,” heard the dispatcher’s voice crackling back through the speaker.

I stayed on the floor beside Kai. The smoke was thinning now, pulled out by the ventilation, and the alarm had settled into a steady rhythm that matched the pounding in my ears. Wei’s thermos had rolled under the next bench and come to rest against a cabinet, still intact, the metal dented but unbroken. I stared at it for a long time, at the small ordinary object that had survived when the people had not.

The emergency crews arrived in twelve minutes. They moved through the bay with the efficiency of people who had done this before, checking vitals, photographing the scene, stringing yellow tape across the far end of the room. A paramedic knelt beside me and asked if I was hurt. I shook my head. She asked again, and I realized I had not spoken.

“I’m not hurt,” I said. My voice sounded like someone else’s.

Sean stood near the door, answering questions from a fire investigator. His face was grey, the kind of grey that had nothing to do with the light. He did not look at me. He did not look at the bodies.

At some point someone put a blanket around my shoulders. I did not remember who. I was still holding my notebook, the pages smeared with soot, the stop criteria I had never enforced still legible beneath the grime.

A woman in a TFDA jacket approached me and said something about a follow-up investigation, about preserving the scene, about notifying the families. I nodded. She asked if there was someone I needed to call.

Linnea, I thought. Dr. Chen. Victor. The names lined up in my head like items on a checklist, each one a call I did not know how to make.

“The families,” I said. “Kai and Wei. Someone needs to call their families.”

“We’ll handle that,” she said. “But there will be a memorial. The company will need to make arrangements.”

The company. I looked across the bay at Sean, still answering questions, still not meeting my eyes. The bypass was still fitted to the regulator. The cells that had killed two people had been ordered from a supplier whose name I did not know, at a price that had seemed like a saving. And Victor Chen’s mandate sat in my phone, the demand that both products survive, the pressure that had pushed every decision faster and harder until there was no room left to stop.

I pulled the blanket tighter and watched the emergency crews work. The red light from the panels washed over everything, the ruined bench, the scattered logs, the dented thermos still lying where it had rolled. Tomorrow I would have to call the memorial venue. I would have to write something for the families. I would have to sit across from Sean and ask him what he had been thinking when he fitted that bypass, and I would have to tell him what Victor had told me, and none of it would bring Kai and Wei back.

The paramedic returned and asked if I wanted to sit down. I was already sitting. I had been sitting on the floor of the development bay for twenty minutes, my notebook in my lap, the blanket slipping off one shoulder, and I could not remember standing up.

“I’m fine,” I said. “I just need a minute.”

She left me there. The investigator was taking photographs of the bypass now, the camera flash cutting through the red gloom in brief white bursts. Sean had finally stopped talking. He stood with his back against the wall, his hands at his sides, his face turned toward the ruined test station as if he were trying to solve a problem whose variables he could no longer name.

I looked down at my notebook. The stop criteria were still there, the words I had written fifteen days ago and never made real. I closed the cover and pressed my palm flat against it, the soot transferring to my skin, and I stayed like that until someone told me it was time to go.