Sarah Trafford and Joe Silvermann

Sarah Trafford and Joe Silvermann’s relationship begins as a professional arrangement and becomes an uneasy alliance in which practical help, personal confidence, and disagreement continually test one another. Their search draws them toward the Singletons and Gerard Inchon; later, the removal of Sarah’s file from Joe’s office helps her recognize that his death was murder, while a letter from him shows that he had chosen to support her search despite their recent argument.

A detective and his client

Sarah’s approach to Joe is indirect but purposeful. After Wigwam leaves, and with no replies yet to the letters she had sent the previous week, Sarah calls Oxford Investigations. She arranges to ask whether the private detective takes gardening work at four pounds an hour, then gets back on the phone and tells Joe that she wants to take a look. Her request that he come with her turns a tentative inquiry into shared action: she is not content to investigate from a distance, and she wants Joe alongside her.

The professional roles are clear, but neither character behaves as though the relationship is merely transactional. Joe does not try to stop Sarah from looking; his response leaves the choice with her. Sarah, in turn, asks for his company rather than simply his services. That distinction matters as the investigation becomes more difficult: her requests show that she values his presence and judgment, even when she is not sure he agrees with her conclusions.

The journey and the investigation

On the drive from Oxford to Littleton, Joe’s nervousness is visible in his driving. He chooses a lane and sticks to it, treating other road users as potential dangers, while the route’s plastic bollards and barricades make the journey feel anything but a quiet excursion. He talks through his misgivings, saying that he needs his head examined. Sarah answers that he is a very good man; Joe dismisses the praise by calling himself a schmuck. Their exchange gives their companionship a lightly comic surface, but underneath it sits a real question of why he is continuing to help.

The inquiry also connects Sarah’s search to Gerard Inchon. When Joe suggests scouting more locations, Sarah instead raises Inchon’s position as a benefactor. Asked whether she knows him, she says she knows him through friends, the Singletons. Her decision to bring up that connection redirects their conversation from possible locations to the people and relationships that may matter to the case. The exchange shows Sarah pursuing her own line of thought, not simply following Joe’s professional lead.

Distance after the journey

The return journey marks a change between them. Sarah remembers that they hardly spoke, and that the silence felt less like an ordinary quarrel than like a wall descending between two worlds: the life she had inhabited and the one she was about to enter. Joe remained perfectly friendly when he commented on the traffic and roads, but his practical politeness could not dispel her misery or her loss of confidence. She began to doubt her own actions, including the false name she had given and the cheque she had written.

The scene does not reduce their separation to a simple falling-out. Sarah’s sense of rupture belongs to a wider collapse in her security, and the passage presents her as unable to trust her own judgment. At the same time, the remembered contrast between Joe’s ordinary, friendly remarks and her inward distress makes the distance between them unmistakable. Their alliance has not vanished, but Sarah experiences the return as a break between the familiar world and an uncertain one.

Murder, missing evidence, and a letter

Later, Sarah finds no trace of herself in Joe’s files. She does not take the omission as evidence that Joe had forgotten her: from the time she spent with him, she believes he would have made a file even if he failed to complete the task. The fact that he had not banked her cheque does not change that judgment. To Sarah, the missing record means that someone removed her file after killing Joe. The absence becomes evidence: it is part of why she knows his death was murder and why she is not taken in by the apparent setup. She understands the danger as a warning directed at her, one that frames her in a drugs ring.

Joe’s letter, which Sarah reads twice, complicates the image of their last encounter. She recognizes it as his even though she does not recognize the handwriting, and sees his failure to get her address wrong as characteristic of him. She recalls that he could be inept as a detective—he had once been arrested while looking for someone’s dog—but that weakness does not cancel the care expressed in the letter. Joe acknowledges that he should not have become angry and says he should help, even if that means driving to Surrey on what he considers a fool’s errand. The letter turns his earlier frustration into a posthumous act of support.

His enclosed copy of a letter to the Ministry of Defence also shows him pursuing a concrete line of inquiry. Joe points to the official claim that Thomas Singleton died four years earlier and asks how Thomas could have died again so recently; he suggests that the Ministry may be able to help establish the answer. The gesture links Joe’s private assistance to Sarah’s search with the wider question surrounding the Singletons. Read after his murder, the letter establishes not that their disagreements were resolved in person, but that Joe had decided to continue helping. Their relationship therefore ends in a stark contrast: Sarah is left with the consequences of the investigation and the missing file, while Joe’s final communication confirms the loyalty that their difficult journey had made uncertain.