The Engineer With the Photometer

I had read the last line of the log four times, the light is not enough, it wants me to look, do not look, and I was still standing in the cold round watch room with the tin open in my hands and the salt-blind glass going grey to dark behind me, when I heard a sound that did not belong to Maren Skerry. It was an engine, and it was in the sky.

A lurch went under my ribs, half hope and half the old animal flinch of a thing arriving. My head came up and round, turning the noise into my good ear and my good eye both, and my hands shut the tin without my telling them to. Only then did the thought catch up, plain and disbelieving: a helicopter. The pale scar of the helipad had sat there a week, scraped flat by men who do not believe in any of this, and I had walked past it the way you walk past a phone you are sure will never ring.

I went down the spiral stair faster than I have gone down anything in the dark in eight years, one hand on the cold iron rail, talking to myself the whole way, mind your feet, Imani, mind the turn, and out into the last of the grey day, and there it was, a small red-and-white machine sitting on the helipad with its rotor winding down and a woman climbing out of it backward, careful, in a high-visibility coat, with a hard case in one hand and her head ducked the way they teach you.

The pilot did not cut his engine. That told me what I already knew in my chest, that the sky over the water to the west had gone the colour of a healing bruise, and the man wanted to be off the rock before it closed. The woman handed her cases down to me without a word of greeting beyond a nod, the brisk handover of a person used to being met by strangers in bad places, and by the time we had it all clear of the rotor wash the pilot was already lifting, the noise of him battering the rock and then thinning out across the water and gone, and the quiet came back, and the sea, and the long grind of it under everything.

"Priya Sundaram," the woman said, putting out a cold hand. "Authority. Here for the beacon." She had a neat tired face, forty-odd, a head-torch pushed up on her brow, and the kind of careful eyes that go over a thing and file it. She looked at the dead black lantern at the top of the tower and then at me. "You will be the caretaker."

"Imani Beckford," I said. "You picked a day for it."

"I picked the only day the schedule gave me." She looked west, at the bruise, and her mouth went flat. "And it was a poor pick. He will not come back for me before tomorrow now, perhaps the day after, if that front does what the chart says." She did not seem afraid of this, only annoyed by it, the way you are annoyed by a delayed train, and I felt something loosen in my chest that I had not known was clenched, because here was a woman who looked at a coming storm and saw a logistics problem, and I had been a week alone with a thing that looked at the dark and saw a door.

I will not pretend to a dignity I did not have. I wanted to weep with the relief of her. Another living animal on the rock, warm, breathing, real, with a hard case full of instruments and not one superstition in her face. I picked up two of her cases before she could and I said, come away in out of it, the kettle is on, which it was not, and I put it on the moment we were through the door, and I lit the lamp, and both bulbs, and, because there were two of us now and I did not have to account for the waste of it, the hurricane lamp and three candles besides, and the kitchen came up gold and full and ordinary, and Priya Sundaram looked round it and said, "You like a lot of light."

"I do," I said. "I find it agrees with me."

She huffed something that was nearly a laugh and got out of her wet coat, and I made the tea strong and put out the tin of good biscuits I had been saving for no reason a person living alone ever has a reason, and we sat in the blaze of every light I owned and talked the way two professionals talk, which is to say about the work, sideways, with the fear left in the corridor outside.

She was an engineer of light. I found it funny and terrible both, that the authority had sent me, who lost half my sight, a woman whose trade was the eye, to mind a tower, and now had sent her, whose trade was the lamp, to switch the last of it off. She talked about lux and candela and the changeover to the satellite beacon, the cold automated flash I had watched throw itself out over the water for a week and land on nothing. She talked the way a doctor talks about a procedure, neutral, exact, and I drank in every dry word of it, because there is no better light against the dark than a person who does not believe in the dark.

"You will think me a strange host," I said, when the pot was empty, "but I am very glad of the weather."

She looked at me then, properly, the careful eyes going over my face the way they had gone over the room, and whatever she saw there she was kind enough not to name. "It is a hard posting, this," she said. "Alone, in the winter, on a rock. They should pair people. They never do." And that was as near as she came to it, and it was near enough, and I was grateful for that too.

We made up the cold front bedroom for her with what spare bedding there was and a candle by the bed that she looked at and did not light and did not, to her great credit, remark on when I left it there burning. We ate at the kitchen table with the storm finding the rock at last, the wind coming up not in gusts but in a long building press, a hand leaning harder and harder on the whole island, the rain going across the black glass sideways, the generator hitching in its shed and catching and hitching, and none of it, with another person in the room, touched me at all.

That is the thing I have to say honestly, because it matters to what came after. With Priya Sundaram in the cottage, the rock let go of me. I do not know how else to say it. The held quality went out of the corners. The patch of nothing in my right eye was only a patch of nothing again, a dull grey coin riding in my own looking, mine, harmless, the way it had been for eight years before this place. I passed the cellar door twice that evening and it was a door. I did not hear the song. I did not feel the thing standing just past the edge of the lamp. It was as if the dark, faced with two minds in the lit room instead of one, two certainties to push against instead of one frayed and fraying alone, had simply stepped back out of reach and waited, the way it waits, patient, for the company to leave.

I should have read more into the receding than I did. I was too busy being happy.

We talked late. She told me, drawn out slow over the last inch of Calum's whisky, about her grandfather, who had walked into the sea off a beach in Kerala when she was a girl and was never found, and how the family had folded it away unexplained, and how she had gone, the way some of us go, straight at the most measurable thing she could find, lamps and lenses and lux meters, light that does what the numbers say it will do, every time, no dark place where a thing could hide unexplained. "Light is honest," she said, turning her cold mug in her careful hands. "It is the one honest thing. You point an instrument at it and it tells you the truth. It cannot lie to a meter." And I, who had spent a week watching light fail to land on the water, and a torch beam stop at the surface of the dark like a stone on ice, said nothing, because I would have given a great deal for one night of believing her.

I got it. I slept. For the first time on Maren Skerry I lay down in the back bedroom with the lamp on and another human animal snoring gently through the wall, alive, near, real, and I slept the whole black middle of the night through without waking to a dead cold torch or a held silence or a patch of nowhere with something standing in it. I woke to grey daylight and the storm still on and Priya already up, and I lay there a moment in the rare clean feeling of a night survived without paying for it, and let myself think the thing I had not dared think since the slip. I can do this. I can simply outlast the winter. Enough bulbs, enough fuel, enough company, and the dark will keep stepping back, and I will go home in the spring with a strange story I will never tell, and that will be all it ever was.

Three more days went like that, storm-bound and blazing and almost ordinary, the pilot's tomorrow becoming the day after and the day after that, and I hoarded them the way I hoard light.

I did not tell her about the log. That is the part I go back over. I had it in the tin in the watch room, two hundred years of fear in a shaking hand, do not look, and I did not bring it down and lay it on the table and say, read this, tell me I am mad. I told myself I would, when the weather lifted, when I could get her safely off the rock and not strand her here with the knowing. The truth is uglier and simpler. I wanted one ordinary day, to sit in a lit kitchen with a sensible woman and her instruments and not be, for a few hours, the half-blind keeper of a dark that sings. So I kept it to myself, and we went up the tower together on the fourth grey morning to service the beacon, and that is where the day turned.

The storm had not lifted, only steadied, and the lamp room at the top was loud with it, the wind finding every old seam in the glass, the dead dioptric lens hulking in the middle of the round floor. Priya went straight to the new beacon bolted in beside the dead lens, and had it open and her instruments out with the quick sureness of a woman in her own country at last. I stood by and held things when she asked and counted, the way I do, the lights in the room, the grey day in the glass, the head-torch on her brow, the lamp I had carried up out of habit and set burning on the floor, because I do not climb into the dark without a light I lit myself, not since Calum gripped my wrist and said the words.

She checked the beacon was drawing its power, and it was. She checked the flash, and it flashed, the cold flat pulse filling the glass room every ten seconds and going out into the grey. And then she took up the last instrument, a small black handheld thing with a sensor on a short lead, and said, half to herself, "Photometer. Last reading, then we wait for your boatman."

A small drop came in my chest, my hand going still on the rail, and then the thought, slow behind it. She had gone quiet in a particular way.

She was holding the sensor up into the light. The beacon flashed, and flashed, the room going white and dark and white, and her own head-torch burning, and my lamp burning on the floor, light enough, plain light, light a meter could not argue with, and she frowned at the little screen, and tapped it, and held the sensor higher, into the very mouth of the beacon as it flashed, and tapped it again.

"That is not right," she said. Her voice had lost its briskness. "Hold on."

"What is it," I said.

She turned the photometer round so I could see the screen, and her careful face had gone as grey as the glass, and on the little display, in a room full of light, with the beacon flashing white into both our faces and my lamp burning gold at our feet and her head-torch throwing its hard clean cone across the dead lens, the reading sat at zero. Nothing. Total dark. As if every light in that high glass room was there only for the eye, a picture laid over the surface of the thing, and underneath it, where the meter looked, where the numbers cannot lie, the dark had not been touched at all.