Mental illness? Fantasist? he wrote.

Wardle was already looking into her online contacts. Strike paused in his writing, remembering the photograph of Kelsey’s head with its full cheeks in the freezer, staring out of its frosted eyes. Puppy fat. He had thought all along that she looked far too young for twenty-four. In truth, she had looked young for sixteen.

He let his pencil fall and continued to turn his mobile over and over in his left hand, thinking…

Was Brockbank a “true” pedophile, as a psychologist Strike had met in the context of another military rape case had put it? Was he a man who was only sexually attracted to children? Or was he a different kind of violent abuser, a man who targeted young girls merely because they were most readily available and easiest to cow into silence, but who had wider sexual tastes if an easy victim became available? In short, was a babyish-looking sixteen-year-old too old to appeal sexually to Brockbank, or would he rape any easily silenced female if he got the chance? Strike had once had to deal with a nineteen-year-old soldier who had attempted to rape a sixty-seven-year-old. Some men’s violent sexual nature required only opportunity.

Strike had not yet called the number that Ingrid had given him for Brockbank. His dark eyes drifted to the tiny window that showed a feebly sunlit sky. Perhaps he should have passed Brockbank’s number to Wardle. Perhaps he ought to call it now…

Yet even as Strike began to scroll down the list of contacts, he reconsidered. What had he achieved so far by confiding his suspicions to Wardle? Nothing. The policeman was busy in his operations room, doubtless sifting leads, busy with his own lines of inquiry and giving Strike’s—as far as the private detective could tell—only slightly more credence than he would have given anyone who had hunches but no proof. The fact that Wardle, with all his resources, had not yet located Brockbank, Laing or Whittaker, did not suggest that he was prioritizing the men.

No, if Strike wanted to find Brockbank he ought surely to maintain the cover that Robin had created: that of the lawyer looking to win the ex-major compensation. The traceable backstory they had created with his sister in Barrow might prove valuable. In fact, thought Strike, sitting up on the bed, it might be an idea to call Robin right now and give her Brockbank’s number. She was alone, he knew, in the Ealing flat, while Matthew was home in Masham. He could call and perhaps—

Oh no you don’t, you silly fucker.

A vision of himself and Robin in the Tottenham had bloomed in his head, a vision of where a phone call might lead. They were both at a loose end. A drink to discuss the case…

On a Saturday night? Piss off.

Strike got up suddenly, as though the bed had become painful to lie on, dressed and headed out to the supermarket.

On his way back into Denmark Street carrying bulging plastic bags he thought he spotted Wardle’s plainclothes policeman, stationed in the area to keep an eye out for large men in beanie hats. The young man in a donkey jacket was hyperaware, his eyes lingering a tad too long on the detective as he walked past, his shopping swinging.