“So basically,” said Wardle wearily, “all this shit we’re taking for not finding her within twenty-four hours is down to alcohol and racism. The silly bitches were convinced Heather had got on that bus so we wasted a day and a half trying to track a woman wearing a similar coat. Then the owner of the Adult Entertainment Centre goes to put his bins out and finds her lying there under a load of bags, nose and ears cut off.”

“So that bit was true,” said Strike.

Her mutilated face had been the one detail all of the papers had agreed on.

“Yeah, that bit was true,” said Wardle heavily. “‘The Shacklewell Ripper.’ It’s got a great ring to it.”

“Witnesses?”

“Nobody saw a bloody thing.”

“What about Devotee and his motorbike?”

“Ruled out,” Wardle admitted, his expression grim. “He’s got a firm alibi for Heather’s killing—family wedding—and we couldn’t make anything stick for either of the other two attacks.”

Strike had the impression that Wardle wanted to tell him something else, and waited receptively.

“I don’t want the press to get wind of this,” Wardle said, dropping his voice, “but we think he might’ve done two more.”

“Jesus,” said Strike, genuinely alarmed. “When?”

“Historic,” said Wardle. “Unsolved murder in Leeds, 2009. Prostitute, originally from Cardiff. Stabbed. He didn’t cut anything off her, but he took a necklace she always wore and dumped her in a ditch out of town. The body wasn’t found for a fortnight.

“Then, last year, a girl was killed and mutilated in Milton Keynes. Sadie Roach, her name was. Her boyfriend went down for it. I’ve looked it all up. The family campaigned hard for his release and he got out on appeal. There was nothing to tie him to it, except that they’d rowed and he once threatened a bloke with a penknife.

“We’ve got the psychologist and forensics on to all five attacks and the conclusion is they’ve got enough features in common to suggest the same perpetrator. It looks like he uses two knives, a carving knife and a machete. The victims were all vulnerable—prostitutes, drunk, emotionally off balance—and all picked up off the street except for Kelsey. He took trophies from all of them. It’s too soon to say whether we’ve got any similar DNA off the women. Odds are, not. It doesn’t look like he had sex with any of them. He gets his kicks a different way.”

Strike was hungry, but something told him not to interrupt Wardle’s moody silence. The policeman drank more beer then said, without quite meeting Strike’s eyes,

“I’m looking into all your guys. Brockbank, Laing and Whittaker.”

About fucking time.

“Brockbank’s interesting,” said Wardle.

“You’ve found him?” asked Strike, freezing with his pint at his lips.

“Not yet, but we know he was a regular attendee at a church in Brixton until five weeks ago.”

“Church? Are you sure it’s the same bloke?”

“Tall ex-soldier, ex-rugby player, long jaw, one of his eyes sunken, cauliflower ear, dark crew cut,” reeled off Wardle. “Name Noel Brockbank. Six foot three or four. Strong northern accent.”