Cormoran Strike and John Bristow

Cormoran Strike and John Bristow’s relationship moves from a paid investigative arrangement toward direct opposition. Bristow hires Strike to revisit Lula Landry’s death; Strike accepts the work but does not accept the assumptions built into the initial police account. He repeatedly returns to disputed details, asks Bristow to help clarify what happened to Lula’s laptop, and reconstructs the movements inside her building. The investigation that Bristow commissioned thus becomes the means by which Strike tests—and ultimately overturns—his client’s account.

The commission and its limits

Bristow approaches Strike as a client seeking a fresh investigation into Lula’s death. Yet the working relationship is not founded on unquestioning trust. Strike’s method is to distinguish what a witness directly observed from what that witness inferred, and to check confident accounts against locations, timings, and physical traces. Even before the evidence points decisively back toward Bristow, Strike treats his version of events as something to be examined rather than accepted simply because he supplied the commission.

The police material on the Bestiguis gives Strike one example of that caution. Tansy Bestigui repeatedly maintained that her husband had been asleep when Lula fell, but her changing accounts and the uncertain layout of the apartment left Strike unable to establish exactly where either Bestigui was at the crucial moment. He also noticed that Tansy shielded her face when he pressed her on the point. These unresolved questions do not by themselves prove Bristow’s guilt; they show how Strike’s professional independence begins to separate the investigation from the client’s preferred explanation.

A second examination of the evidence

Strike’s approach is also evident when he asks Spanner to examine Lula’s laptop. The police had already looked at the computer, but Strike wants an independent assessment because he suspects that investigators may have searched for the wrong things or failed to understand what they found. He directs attention to activity on and leading up to 8 January, including recent internet searches, and explains that he would rather not return to the police for the password unless necessary. The request makes the contrast between client and detective clear: Bristow has commissioned an inquiry, but Strike determines what questions the inquiry must ask.

The decisive lead is the discovery that a file of photographs was deleted from the laptop after Lula died. Strike raises the discovery directly with Bristow during a phone call, asking whether he knows anything about it. Bristow’s silence is conspicuous, though silence alone does not establish what he knows. Strike follows the question with a request that Bristow ask their mother whether she had the laptop running in mid-March and whether any visitor showed interest in it. Bristow agrees, sounding deeply strained; Strike formally expresses sympathy for their mother’s weakness before ending the call. The exchange keeps their working contact intact while placing a new, uncomfortable question between them.

Reconstructing the scene

At Kentigern Gardens, Strike asks Derrick Wilson to demonstrate the order in which he searched Lula’s flat on the night of her death. The request is characteristic of Strike’s dealings with Bristow’s case: rather than treating a recollection as a complete account, he has Wilson retrace the route through the rooms. The physical sequence matters because even a small overlooked detail can change the meaning of an apparently settled narrative.

On the stairs, Wilson recalls that he slipped backwards and sat down hard. He had forgotten the incident until retracing the search, and then remembered drops of water on the steps. Strike repeats the detail, registering it as something that requires an explanation. Later, when confronting Bristow, Strike explains that Bristow carried white roses from Flat Two to Lula’s flat and did not notice that drops of water from the roses remained on the stairs. Wilson slipped on them afterward. The detail links Bristow’s movement through the building to the sequence of the search: what first appeared to be incidental water becomes a trace of the route taken before Wilson arrived.

From client to adversary

In the final reconstruction, Strike tells Bristow that he took several white roses from their vase, dried their ends imperfectly, left the door of Flat Two ajar, and climbed to his sister’s flat. Bristow knocked with the roses, and Lula, expecting her long-lost brother, opened the door. Strike’s account draws together the erased photographs, the movements through the building, and the water left on the stairs. What had been separate pieces of evidence become a connected explanation that implicates the man who hired him.

That reversal defines the relationship. Bristow can no longer occupy the secure position of client asking a detective to correct an unsatisfactory police conclusion; Strike’s questions and reconstruction make him the object of the inquiry. Bristow’s commission gives Strike access to the case, but it does not give Bristow control over the conclusions. Their relationship therefore shifts from professional cooperation to confrontation, with the client’s request for truth producing evidence that turns the investigator against him.