The Murder of Marit Olsen at Frogner Baths is a central case in the investigation led by Harry Hole: its use of a distinctive rope, its apparent staging, and its links to travel through Ustaoset and Hävasshütte help redirect the search toward a wider chain of events. The evidence presented here does not reconstruct the killing itself in detail; instead, it shows how investigators interpret its clues and how later information changes the meaning of the apparent pattern.

The Case and Its Emerging Links

The investigation treats Marit’s death as part of a possible series. In a conversation with Mikael Bellman, Harry disputes the description of the rope factory as a crime scene, but stresses that the rope made there was the one used to kill Marit. He also points to the trail that led investigators to Elias Skog and Hävasshütte, and reports that they have found a fourth victim, Adele Vetlesen. The discovery gives Harry a concrete measure of his team’s progress against an investigation that, he says, has produced no comparable result after two months.

The links around Ustaoset add a separate strand. Adele, reported missing by her partner in November, had bought a train ticket from Drammen to Ustaoset for November 7. On that same date, Marit had bought a ticket from Kongsberg to the same destination. The shared destination connects their movements, though the ticket evidence alone does not establish what happened to either woman there.

A further record places two people together in the mountain-hut network. Iska Peller’s account was charged for two beds in each of four huts, each roughly a day’s walk from the next. The final hut was Hävasshütte, where the pair had been on November 7; it was only half a day’s walk from Ustaoset. Together, the tickets and booking records make the area important to the inquiry without, by themselves, resolving the relationships among the travelers.

Display, Control, and the Suspected Pattern

Harry considers whether Marit’s murder marks a change in the killer’s behavior. Kaja suggests that the murderer may have lost control, but Harry offers a competing interpretation: the killing at Frognerbadet may have been a conspicuous appeal for attention, a new level of calculated display. In his reading, the choice of rope was at most careless; otherwise, the killer had left no obvious traces. The exchange leaves open whether the apparent boldness signals deteriorating control or deliberate confidence.

The case file on Borgny Stem-Myhre provides a contrast, not a description of Marit’s death. Borgny disappeared after leaving the Mono and was later found in a basement; the medical report recorded ketamine and an unusual pattern of injuries, while investigators found no fingerprints, DNA, or footwear impressions. Harry studies the forensic material as he revisits the cases. Its specificity helps explain why the investigators are searching for a connection, but the evidence here does not establish that every crime in the series was carried out in the same way.

Movements and the Question of Opportunity

Tony Leike later said that he could be suspected of Marit’s murder because he had not spent the whole evening at home with his fiancée. He said he had gone cross-country skiing for two hours on the illuminated trail at Sorkedal. The statement offers a possible period of opportunity, but the evidence cited here does not confirm that he committed the murder.

Another account shifts attention to the night at Hävasshütte. Elias Skog told a woman in Stavanger that he had awakened to sounds outside his bedroom window and seen two people near the outhouse. At the time, he interpreted the scene as a sexual encounter; after reading about the murders, he reconsidered whether the woman might have been trying to escape and whether the man’s hand over her mouth was intended to silence her. This recollection connects the hut to a possible act of violence, but does not by itself establish what that incident was or how it relates to Marit’s killing.

Investigation and Reinterpretation

The inquiry’s understanding develops through competing explanations rather than a single decisive clue. Harry argues that Marit’s killing was staged to attract attention, while other evidence draws the investigators toward shared routes and the mountain huts. These threads make the apparent series more legible, but they also warn against treating every crime as an identical expression of one motive.

The novel’s December interlude from the killer’s perspective sharpens that tension. Its narrator describes collecting newspaper photographs of victims alive and smiling, while noting that the police have not yet recognized the connection among the murders. The narrator’s claim to have found what makes a person a murderer supplies an ominous counterpoint to the investigators’ gradual work: the killer imagines a settled truth, while the case remains an unfinished process of inference. Later, when Harry learns that the apparent assault at Hävasshütte was not what it first seemed, he recognizes that the new information changes the pattern at once. The murder of Marit remains part of that larger puzzle, but the evidence presented here does not specify its final explanation.