The release of the minks is the earliest apparent action in a sequence that troubles Kurt Wallander: an animal-rights operation followed by a regional blackout and a killing aboard a ferry. Its significance lies less in any detail of the release itself, which the investigation never supplies, than in the way a terse computer file connects Tynnes Falk’s past activism to a widening and increasingly violent inquiry.

Discovery and the Clue

Wallander finds the clue while searching Robert Modin’s room for a third time. From the bed, he notices that a bookcase leans slightly toward the wall; beneath it, small washers leave a narrow gap concealing a diskette. The hiding place suggests that someone wanted the disk accessible from the bed, but the file offers no explanation of who put it there or why.

The diskette bears the label Jacob’s Marsh. Its single file was last opened on September 29. When Wallander and Martinsson open it, they find only an instruction to release the minks. Wallander recognizes a possible connection to something Ann-Britt Höglund had said about games, then links the clue to Falk and Jonas Landahl. He recalls that Falk had once been involved in animal-rights activity and wonders whether Landahl was among the people involved. The message prompts urgency, not certainty: Wallander says they need to find Landahl quickly, while admitting that he does not know exactly what the instruction means.

Animal-Rights Context

The later discussion gives the clue a plausible political setting. Martinsson describes groups that break into laboratories and sabotage animal experiments, while noting that most such groups are nonviolent and regard their actions as civil disobedience. Falk’s involvement in animal-rights activity makes the release intelligible as part of that world, but it does not establish who carried it out or whether it was connected to the other crimes.

Wallander resists reducing the case to a single explanation. The progression from releasing minks to cutting power might not be a great leap for a fanatic, he observes, but the investigators still lack a clear account of what happened. The animal-rights reference supplies a possible bridge between protest and sabotage; it does not prove that the release was intended as the first stage of a larger operation.

The First Apparent Domino

As the investigation expands, Wallander and Martinsson describe the sequence as minks released, a blackout in Skåne, and then a murder in the engine room of the Poland ferry. Wallander’s domino image gives the release a structural role: it appears to be the first piece to fall, with each later act suggesting a broader demonstration of how easily ordinary systems can be disrupted. He can imagine activists carrying out the mink release and can see how a blackout might expose society’s vulnerabilities, but the ferry killing does not fit that logic readily.

That difficulty makes the sequence provisional rather than conclusive. Wallander begins to question whether the events should be treated as one chain at all, since the murder of Lundberg remains difficult to fit and Sonja Hökberg’s role may be less central than they had assumed. The release of the minks therefore functions both as a concrete clue and as a limit on interpretation: it ties Falk to an activist context and gives the investigators a possible starting point, but the evidence does not settle whether the subsequent blackout and killings grew from the same plan.