John Rebus’s interrogation of Charlie links the occult markings at Ronnie McGrath’s house to a student who knew Ronnie and had seen him with a close male companion. Charlie provides information about the night of the overdose and admits to adding to the pentagram, but the interview ends not in cooperation or arrest, but in his refusal to accept Rebus’s account and his departure from the station.

Identification and approach

The encounter begins with Dr Poole, who cannot help Rebus much directly but points him towards a second-year student interested in the occult. The student has written a long, knowledgeable essay and wants to pursue a project on demonism over the summer. Poole remembers that he goes by his first name, first recalling Charles and then settling on Charlie. This introduction frames Charlie as someone with a genuine academic interest in occult subjects, rather than establishing that interest as evidence of a crime.

When Rebus finds him, Charlie is playing pinball. The scene gives him a brief life beyond the police inquiry: at nineteen, he is newly at university after years of boarding school, prep, books, music, and introspection, and is trying to take up experiences he feels he missed. Pinball becomes a concrete sign of that appetite for play and novelty. Rebus’s arrival interrupts it; Charlie turns at the sound of his name, realizes his mistake, and faces the serious, unsmiling man approaching him.

Rebus’s manner initially carries the pressure of an interrogation. He complains of Charlie’s lack of humor and warns that his patience is short. When Charlie objects to being touched, Rebus releases his shoulder and names Ronnie. Charlie’s response changes at the news that Ronnie is dead, shifting the conversation from his irritation at Rebus to the circumstances of the death.

The night at Ronnie’s house

Rebus asks Charlie about the night of the overdose. Charlie says that he was in the house with Ronnie for a little while and that Tracy was still there when he left. His account places him at the house that night, but does not, by itself, establish what happened after his departure. The distinction matters: the interview elicits a connection and a sequence, not a confession to causing Ronnie’s death.

Asked who else had been there, Charlie recalls a man who visited earlier in the evening and did not stay long. He had seen the visitor with Ronnie on a couple of previous occasions. Charlie says the two kept to themselves when they were together and rejects Rebus’s suggestion that the visitor was Ronnie’s dealer: Ronnie could generally obtain drugs, though that had become difficult in the preceding couple of weeks. Charlie’s evidence thus adds a change in Ronnie’s circumstances as well as a recurring visitor, while leaving the source of Ronnie’s supply problems unexplained.

Charlie identifies the man as Neil, whom Ronnie called Neilly. He describes their closeness in suggestive but indirect terms; the exchange conveys that their connection appeared more intimate than casual acquaintance without providing a fuller account of their relationship. This is the interview’s most consequential disclosure about Ronnie’s private life: Rebus learns a name, a familiar form of address, and that Charlie understood the bond between the two men to be unusually close.

The pentagram and Rebus’s account of the death

Rebus turns from Charlie’s knowledge of Ronnie to the pentagram at the house. He points out that someone has added to the marking since the photographs were taken. Charlie says nothing at first, but does not appear surprised when Rebus asks whether he was responsible; he then nods. His admission connects him directly to a later alteration of the scene. The exchange establishes that Charlie returned and added to the pentagram, though it does not show that he created the original marking or explain all his reasons for returning.

Rebus then presents his interpretation of Ronnie’s death. He says that Ronnie was murdered, or effectively murdered: his body contained rat poison, which he had taken himself but which had been supplied by someone who probably knew it was lethal. Rebus also describes the body as having been moved into a ritualistic position in the living room, where the pentagram was. These claims make the occult arrangement part of the suspected staging of the death, not proof of a supernatural cause. Charlie’s immediate reaction is shock; the news appears to be new to him in this conversation.

Refusal and significance

Rebus tries to continue the conversation in a gentler register, but Charlie does not accept the invitation. He stands over the desk and accuses Rebus of using cheap tricks, telling him to arrest him if that is what he intends. The outburst does not retract his admission about the pentagram or his account of Neil; instead, it closes off further questioning on Rebus’s terms. Charlie leaves the room and then the station, leaving Rebus to switch off the recorder, pocket the tape, and follow after him. The interview produces leads but no resolution: Charlie has supplied information, yet Rebus has not secured his continued cooperation.

As a plot event, the interrogation moves between evidence and interpretation. Charlie confirms his presence at the house, identifies Neil as a recurring and notably close companion of Ronnie, and acknowledges his own return to the scene to alter the pentagram. Rebus’s account of lethal poison and ritual staging raises the stakes, but the exchange cannot establish from Charlie’s testimony who supplied the poison or who arranged Ronnie’s body. Its importance lies in making the case more specific while preserving those unanswered questions.