Finally Holly sighed, an enormous shaky sigh, and disentangled herself. She climbed out of the car and hoisted her schoolbag onto her back. “If I have to talk to that Stephen guy,” she said. “Could it be not on Wednesday? Because I want to go play at Emily’s.”

“That’s absolutely fine, sweetie. Whatever day suits you. Go on ahead, now. I’ll be in to you in a bit; I’ve just got to make a phone call.”

Holly nodded. There was an exhausted sag to her shoulders, but as she went up the path she gave her head a little shake and braced herself. By the time Liv answered the door with her arms open, that narrow back was straight and strong as steel.

I stayed where I was, lit a smoke and sucked down about half of it in one drag. When I was sure I could keep my voice steady, I phoned Stephen.

He was somewhere with crappy reception, presumably deep in the warren of Murder rooms in Dublin Castle. I said, “It’s me. How’s it going?”

“Not too bad. Like you said, he’s denying everything, and that’s when he bothers answering me at all; mostly he won’t talk, except to ask me what your hole tastes like.”

“He’s a charmer. It runs in the family. Don’t let him get to you.”

Stephen laughed. “Ah, God, I’m not bothered. He can say whatever he likes; at the end of the day, I’m the one going home when we finish up. Tell us, though: what’ve you got? Anything that might get him feeling a bit chattier?”

He was all charged up and ready to keep going for as long as it took, and his voice was bursting with brand-new confidence. He was trying to sound tactfully subdued, but deep down, the kid was having the time of his life.

I gave him everything I had and how I had got it, down to the last rancid stinking detail: info is ammo, and Stephen didn’t need any blanks in his stockpile. At the end I said, “He’s fond of our sisters, especially Carmel, and of my daughter, Holly. As far as I know, that’s it. He hates my guts, he hated Kevin’s but he doesn’t like admitting that, and he hates his life. He’s viciously jealous of anyone who doesn’t, almost definitely including you. And, as you’ve probably figured out what with one thing and another, he’s got a temper.”

“OK,” Stephen said, almost to himself; his mind was going flat out. “OK, yeah. I can use that.”