Karl Lundström’s letter to Linnea

Karl Lundström’s letter to Linnea is both an intimate message from a father to his daughter and a fragmentary record that redirects attention toward Viggo Dürer. Written during a flight in the spring, only a few weeks before Karl’s arrest, it begins with encouragement but turns into an unsettled meditation on guilt and desire. Its references to a “home of shadows,” to Dürer, and to Kristianstad make the letter a clue in the investigation, though not conclusive proof. Linnea first reveals it to Sofia Zetterlund, who recognizes its language; later, Linnea destroys the original, while a photocopy remains available to the police.

The letter and its changing tone

Linnea produces the letter during a conversation with Sofia about her father. She has kept it from Sofia since the previous day, and she appears embarrassed as she takes the crumpled paper from her pocket and pushes it across the desk. Her hesitation matters: the document is not simply an account she has already chosen to share, but something she has withheld before deciding to bring it into the conversation.

The handwriting is described as beautiful but difficult to decipher. The ordinary opening phrases give way to increasingly fragmentary and incoherent passages. In one section, Karl encourages Linnea by presenting patience and fear of defeat as qualities that could help her succeed. He then turns to his own sense that the past has overtaken him and to wounds that, he suggests, quietly consume a person. The letter’s movement from reassurance to despair makes the father’s address to his daughter unstable: encouragement remains, but it is joined by a private reckoning that she is being asked to read.

Karl’s repeated image of seeking a home in the shadows catches Sofia’s attention. She remembers that, at their first meeting in Huddinge, Karl described the home of shadows as a metaphor for a secret, forbidden place. The wording therefore connects the letter to a phrase he had used before, while also making the private letter feel continuous with what Sofia has learned about him in a clinical setting. Linnea dismisses the document’s oddness by suggesting he was probably drunk, but Sofia recognizes the phrase and treats it as meaningful rather than incidental.

Guilt, history, and the Dürer reference

The letter’s next movement complicates Karl’s account of responsibility. He writes that a book contains material about both himself and Linnea, and reflects on desires that have been acted upon by many others across history. He frames repetition as a possible defense: if others have done the same, he wonders whether his own actions might be sanctioned by history. Yet the thought does not settle the question. Karl acknowledges that his conscience continues to tell him something is wrong, even as he tries to understand the origin and status of his desires.

He invokes the Oracle of Delphi, Pythia, and Socrates, turning the letter toward the limits of knowledge and the possibility that recognizing one’s ignorance might itself be wisdom. The philosophical allusions do not resolve the moral uncertainty. Instead, they sit beside Karl’s attempt to explain himself, leaving a tension between his effort to place personal conduct within a larger historical pattern and his awareness that this explanation cannot silence his conscience.

Several lines are illegible, followed by a large dark red stain that Sofia presumes is red wine. After this gap, Karl returns to Socrates and the accusation of corrupting youth, then mentions Viggo and Henrietta and asks Linnea about what happened in Kristianstad when she was little. The reference is abrupt, arriving after the letter’s philosophical and self-justifying passages. Sofia connects it with Annette Lundström’s mention of the Dürers and with Dürer’s appearance in Linnea’s drawings. The letter thus does not supply a complete account of the earlier events; it directs Sofia toward names and a past that require investigation.

From private document to investigative evidence

Sofia’s response to the letter develops beyond recognition of its recurring phrase. As she continues reading, she connects Karl’s ambivalent treatment of right and wrong with their earlier conversation in Huddinge, and the pieces begin to fall into place. The document helps her interpret what Karl has said before, while its reference to Dürer gives the investigation a more specific lead.

Later, Sofia offers Jeanette Kihlberg evidence that might help put pressure on prosecutor Kenneth von Kwist. She has a photocopy of Karl’s letter, in which Karl implies that Dürer abused Linnea, and photographs of drawings Linnea made as a child that also describe abuse. Jeanette examines the drawings and the photocopy and says they will be useful, while cautioning that they are circumstantial rather than definite evidence. The distinction preserves the letter’s evidentiary limits: it can support suspicion and guide inquiry, but it does not independently establish what happened.

The letter also forms one part of a broader set of concerns Jeanette considers while directing investigators to learn more about Dürer, even after his death. She knows that half a million kronor has been paid into Annette’s bank account and suspects it may be a bribe, although the source of the money has not been traced. Sofia has also indicated that Ulrika Wendin had considerable cash and implied that Dürer might be behind it. Set beside those financial questions and Linnea’s drawings, Karl’s letter becomes a strand in an accumulating case rather than a self-sufficient explanation.

Destruction and the letter’s afterlife

At the Lundström house in Edsviken, Linnea burns the letter and flushes its charred remains down the toilet before returning to her room. The original document is therefore removed from her possession, but its contents have already passed beyond the private exchange between father and daughter: Sofia has read it, and a photocopy has been shown to Jeanette. Destruction changes the object’s status without erasing its role in the investigation.

Immediately afterward, Linnea thinks about Sofia’s account of Charles Darwin conceiving the idea for The Origin of Species in a moment and spending the rest of his life gathering evidence for it. The narrative places this reflection after the letter’s destruction, but does not explain it as a motive for burning the document. The juxtaposition instead leaves the reader with a contrast between an idea that must be tested against evidence and a letter whose implications remain partial. As an object, Karl’s letter moves from withheld family paper to interpretive clue, from clue to copied evidence, and finally from original document to ash. Its importance rests not on settling the case but on how it connects Karl’s earlier language, Linnea’s drawings, and the unresolved questions surrounding Viggo Dürer.