I had my hands stuffed in my coat pockets to hide my clenched fists. I said, “You mean you bullied her into talking to you.”

Quigley’s lips vanished. “You don’t want to take that tone with me, Detective. I didn’t bully her into anything. I brought her into an interview room and we had a wee chat. She took a bit of convincing, but in the end she realized that you’re always better off following garda orders.”

I said, keeping my voice level, “You threatened to arrest her.” The thought of being locked up would have sent Dina into an animal panic; I could almost hear the wild jabber surging up inside her mind. I kept my fists where they were and focused on the thought of filing every complaint in the book on Quigley’s flabby arse. I didn’t give a damn if he had the chief commissioner in his pocket and I ended up investigating sheep rustlers in Leitrim for the rest of my life, as long as I took this lump of shit down with me.

Quigley said virtuously, “She was holding stolen police property. I couldn’t ignore that, could I, now? If she refused to hand it over, it was my duty to place her under arrest.”

“What are you talking about? What stolen police property?” I tried to think what I could have brought home, a file, a photo, what on earth I wouldn’t have missed by now. Quigley gave me a nauseating little smile and held up the evidence bag.

I tilted it towards the weak, pearly light from the landing window—he didn’t let go. For a second I didn’t understand what I was seeing. It was a woman’s fingernail, neatly filed and manicured, painted a smooth pinkish-beige. It had been ripped off at the quick. Caught in a crack was a wisp of rose-pink wool.

Quigley was saying something, somewhere, but I couldn’t hear him. The air had turned dense and savage, pounding at my skull, gibbering in a thousand mindless voices. I needed to turn my face away, shove Quigley to the floor and run. I couldn’t move. My eyes felt like they had been pinned wide open.

The handwriting on the evidence-bag label was familiar, firm and forward-slanting, not Quigley’s semi-literate scrawl. Collected sitting room, residence of Conor Brennan … Cold air, smell of apples, Richie’s drawn face.

When I could hear again, Quigley was still talking. The stairwell turned his voice sibilant and disembodied. “At first I thought, well, holy God, the great Scorcher Kennedy leaving evidence lying around for his bit of fluff to pick up on her way out: who would’ve thought it?” He gave a snigger. I could almost feel it, dripping down my face like stale grease. “But then, while I was waiting for you to honor us, I had a wee read of your case file—I’d never intrude, but you can see why I needed to know where this yoke here might fit in, so I could decide on the right thing to do. And didn’t I spot something interesting? That handwriting there: it’s not yours—sure, I know yours, after all this time—but it shows up an awful lot, in the file.” He tapped his temple. “They don’t call me a detective for nothing, amn’t I right?”