He and Cassie are talking about their childhoods when it first comes up. He's managed to steer around the topic so far, talking about his boarding school days as if there was nothing before, although he has let slip that he lived in Dublin until he was 12.

"Why did your parents send you to boarding school?" she asks, taking a bite of kebab. "If they were moving to England anyway?"

"I think they wanted me to have... stability," Rob says haltingly. He's just repeating something his dad said to him, years ago.

"Why? Did they get divorced?"

"No, they stayed together." Rob is suddenly sick of all the half-truths. "Something happened to me when I was 12."

"What?" Cassie stops chewing and he can see all sorts of nightmare scenarios going through her head.

"Do you remember the case of Peter Savage and Jamie Rowan?"

"God, yeah." Cassie swallows. "I was ten when they disappeared. It wasn't that far from me. Made my aunt paranoid for a while. Why?"

"I was with them the day they disappeared." Rob's voice sounds strangely calm, like he's talking about a case. "I was the one who was found."

Cassie thinks and her eyes widen as it clicks. "Adam?"

He flinches, the name sounds wrong coming from her. "Yeah. Adam Reilly. I thought it might come up when I applied for the job, but..."

"So Robert..."

"It's my middle name."

"Shit," says Cassie, and he realises what a position he's put her in by telling her. Then he sees that's not what's bothering her. "Rob, I'm sorry. That must have been awful for you."

"I don't remember that much," he says honestly. "I barely remember anything of that day, actually. The weeks afterwards are a blur. The locals had their pitchforks out for us. Jamie's mother was convinced I'd done something to her and Peter and, I don't know, made their bodies disappear or something. That's why we moved to England."

"Does O'Kelly know?"

He snorts. "You must be joking. I'd never have been allowed to work Murder. You're the first person I've told."

She stretches out her legs and puts her feet on his lap. He massages the sole of her left foot until she finally says, "Thanks for telling me."

He brings her foot up and kisses it through her sock, then takes the rest of her kebab while she's distracted.