With a faint sense of impotence, and with almost as much contempt for the occupation as Robin’s fiancé felt for it, Strike fought off his lowering sense of gloom by resorting to more internet searches connected with the case. He found Kieran Kolovas-Jones online: the driver had been telling the truth about the episode of The Bill in which he had had two lines (Gang Member Two… Kieran Kolovas-Jones). He had a theatrical agent, too, whose website featured a small photograph of Kieran, and a short list of credits including walk-on parts in EastEnders and Casualty. Kieran’s photograph on the Execars home page was much larger. Here, he stood alone in a peaked hat and uniform, looking like a film star, evidently the handsomest driver on their books.

Evening shaded into night beyond the windows; while Tom Waits growled and moaned from the portable CD player in the corner, Strike chased the shadow of Lula Landry across cyberspace, occasionally adding to the notes he had already taken while speaking to Bristow, Wilson and Kolovas-Jones.

He could find no Facebook page for Landry, nor did she ever seem to have joined Twitter. Her refusal to feed her fans’ ravenous appetite for personal information seemed to have inspired others to fill the void. There were countless websites dedicated to the reproduction of her pictures, and to obsessive commentary on her life. If half of the information here was factual, Bristow had given Strike but a partial and sanitised version of his sister’s drive towards self-destruction, a tendency which seemed to have revealed itself first in early adolescence, when her adoptive father, Sir Alec Bristow, a genial-looking bearded man who had founded his own electronics company, Albris, had dropped dead of a heart attack. Lula had subsequently run away from two schools, and been expelled from a third, all of them expensive private establishments. She had slit her own wrist and been found in a pool of blood by a dormitory friend; she had lived rough, and been tracked to a squat by the police. A fan site called LulaMyInspirationForeva.com, run by a person of unknown sex, asserted that the model had briefly supported herself, during this time, as a prostitute.

Then had come sectioning under the Mental Health Act, the secure ward for young people with severe illnesses, and a diagnosis of bipolar disorder. Barely a year later, while shopping in a clothing store on Oxford Street with her mother, there had come the fairy-tale approach from a scout for a modelling agency.