There were a few finds worth having: two blades—a broken penknife, probably too small to be ours, and a switchblade that could have been interesting except that it was half rusted away—three door keys that would need checking against the Spains’ locks, a scarf with a stiff dark patch that might turn out to be blood. “Good stuff,” I said. “Hand it all over to Boyle from the Bureau, and go home. At eight A.M. sharp, pick up where you left off. I’ll be at the post-mortems, but I’ll join you as soon as I can. Thank you, ladies and gentlemen. Nice work.”

They trudged up through the dunes towards the estate, pulling off gloves and rubbing at stiff necks. I stayed where I was. The team would assume I was taking a still moment to think about the case, working through the dark maths of the probabilities or letting small dead faces have their time to fill my mind. If our man was watching me, he would figure the same thing. I wasn’t. I had budgeted these ten minutes into the day’s schedule, to test myself against that beach.

I kept my back to the estate, all that strafed hope where there used to be bright swimming costumes fluttering on makeshift washing lines between caravans. There was an early moon, pale against the pale sky, flickering behind slim smoky clouds; below it the sea was gray and restless, insistent. Seabirds were reclaiming the tide line, now that the searchers were gone; I stood still, and after a few minutes they forgot me and went back to their skittering search for food and to their calls, high and clean as wind in fretted rock. Once, when a night bird’s squeal close outside the caravan window startled Dina awake, my mother quoted Shakespeare for her: Be not afraid; the isle is full of noises: sounds and sweet airs that give delight and hurt not.

The wind had grown a cold edge; I turned up my coat collar and dug my hands into my pockets. The last time I set foot on that beach, I had been fifteen: just starting to shave like I meant it, just getting used to my brand-new shoulders, just a week into going out with someone for the first time, a golden girl from Newry called Amelia who laughed at all my jokes and tasted like strawberries. I was different, back then: electric and reckless, body-slamming headlong onto any chance of a laugh or a dare, made out of enough momentum to shoot me straight through stone walls. When we guys arm-wrestled to impress the girls, I took on big Dean Gorry and beat him three times running, even though he was twice my size, because that was how badly I wanted to make Amelia clap for me.

I looked out over the water, into the night that was coming in on the tide, and I felt nothing at all. The beach looked like something I had seen in an old film, once upon a time; that hotheaded boy felt like a character from some book I had read and given away in childhood. Only, somewhere far inside my spine and deep in the palms of my hands, something hummed; like a sound too low to hear, like a warning, like a cello string when a tuning fork strikes the perfect tone to call it awake.