“It turns out Kelsey was posting on a website for other people who wanted to get limbs taken off,” Wardle told Robin.

Robin sat down in her usual seat behind her desk. The roses impeded her view of the policeman; she picked them up impatiently and deposited them on the floor beside her.

“She mentioned Strike,” Wardle went on. “Asked if anyone else knew anything about him.”

“Was she using the name Nowheretoturn?” asked Robin, trying to keep her voice casual. Wardle looked up, astonished, and Strike turned, a coffee spoon suspended in midair.

“Yeah, she was,” said the policeman, staring. “How the hell did you know that?”

“I found that message board last weekend,” said Robin. “I thought Nowheretoturn might be the girl who wrote the letter.”

“Christ,” said Wardle, looking from Robin to Strike. “We should offer her a job.”

“She’s got a job,” said Strike. “Go on. Kelsey was posting…”

“Yeah, well, she ended up exchanging email addresses with these two. Nothing particularly helpful, but we’re looking to establish whether they actually met her—you know, in Real Life,” said Wardle.

Strange, thought Strike, how that phrase—so prevalent in childhood to differentiate between the fantasy world of play and the dull adult world of fact—had now come to signify the life that a person had outside the internet. He handed Wardle and Robin their coffees, then went through to his inner office to fetch a chair, preferring not to share the farting sofa with Wardle.

When he returned, Wardle was showing Robin printed screenshots of the Facebook pages of two people.

She examined each of them carefully, then passed them on to Strike. One was a thick-set young woman with a round, pale face, bobbed black hair and glasses. The other was a light-haired man in his twenties with lopsided eyes.

“She blogs about being ‘transabled,’ whatever the fuck that is, and he’s all over message boards asking for help in hacking bits off himself. Both of them have got serious issues, if you ask me. Recognize either of them?”

Strike shook his head, as did Robin. Wardle sighed and took the pictures back.

“Long shot.”

“What about other men she’s been knocking around with? Any boys or lecturers at college?” asked Strike, thinking of the questions that had occurred to him on Saturday.

“Well, the sister says Kelsey claimed to have a mysterious boyfriend they were never allowed to meet. Hazel doesn’t believe he existed. We’ve spoken to a couple of Kelsey’s college friends and none of them ever saw a boyfriend, but we’re following it up.

“Speaking of Hazel,” Wardle went on, picking up his coffee and drinking some before continuing, “I’ve said I’ll pass on a message. She’d like to meet you.”

“Me?” said Strike, surprised. “Why?”

“I dunno,” said Wardle. “I think she wants to justify herself to everyone. She’s in a real state.”

“Justify herself?”

“She’s guilt-ridden because she treated the leg thing as weird and attention-seeking, and feels that’s why Kelsey went looking for someone else to help her with it.”