Sonja Hökberg's escape from the police station becomes a turning point in Kurt Wallander's understanding of the case: what had seemed like a straightforward flight from punishment may instead have exposed her to danger because she knew something that others needed kept secret. The book does not reconstruct the mechanics of her departure; its significance emerges through Wallander's belated reconsideration of why she left and what she might have said if she had stayed alive.

The First Explanation

After Sonja Hökberg confessed to killing Johan Lundberg, the police settled on the most obvious explanation for her escape: she had seized an opportunity to avoid punishment and responsibility. Wallander recognizes that this conclusion had gone largely unexamined. Her confession seemed to make the motive self-evident, so the escape was treated as an effort to get away rather than as a question in its own right.

That initial reading is not disproved. Wallander allows that Sonja Hökberg may indeed have hoped to escape and get away. What changes is the possibility that this was not the whole explanation. Her departure could have served two purposes, or concealed a motive unrelated to the murder she had confessed to.

The Secret She Might Have Carried

The possibility of another motive takes shape after Ann-Britt Höglund reports what she has learned about Sonja Hökberg's past. A man she had dated said that she had told him she was raped several years earlier and remained traumatized; Höglund finds no police case involving her. The account is hearsay, not a confirmed finding, but it prompts the detectives to consider whether the unreported assault had shaped Sonja Hökberg's actions.

Höglund connects that possibility to Carl-Einar Lundberg, Johan Lundberg's son. Carl-Einar Lundberg had stood trial for a violent rape and been acquitted, although, as Höglund observes, there were indications that he had been guilty. She proposes that he might also have committed an earlier rape against Sonja Hökberg, who never went to the police. On this theory, Johan Lundberg's murder could have been revenge directed at his son. The detectives cannot yet establish that Sonja Hökberg knew Johan Lundberg was Carl-Einar Lundberg's father, or how she would have known which taxi he drove; Höglund points to Ystad's small-town familiarity as one possible explanation, not proof.

Wallander's Revised Reading

Wallander sees the escape differently once he considers that Sonja Hökberg might have had something besides personal revenge to conceal. Someone outside the station, he reasons, may have been less concerned that she had confessed to killing Johan Lundberg than that she might tell the police something else. The escape thus becomes a possible point of exposure: by leaving, Sonja Hökberg may have been trying to get away, while an unknown person may have feared what she could reveal.

This remains Wallander's inference, not an established account of her intentions. Its force lies in how it reorganizes the case. He considers that Sonja Hökberg was killed to keep her quiet, and that her killer was then eliminated in turn. The sequence suggests an attempt to erase traces, comparable in his thinking to Robert Modin's removal of traces from a computer. Her escape matters because it offers a possible link between Johan Lundberg's murder and a different, still-unidentified secret.

An Unanswered Question

The escape does not resolve the investigation. Wallander senses that the new explanation brings Johan Lundberg's murder closer to the central chain of events surrounding Tynnes Falk, but he still cannot identify the missing connection or determine what happened in Luanda. He continues to ask who C is and what the recurring number 20 means. Sonja Hökberg's departure therefore functions less as a solved episode than as a clue whose meaning changes: first read as evasion of justice, it becomes a possible sign that the confessed murder was only one part of what she feared would come to light.