Post Mortem: A Mystery (Knopf,
2026) is the third book in David Lagercrantz's mystery series
following detective duo Rekke and Vargas: this time, their hunt for a
killer has a literary twist. Professor Hans Rekke and police officer
Micaela Vargas have earned a reputation for solving the unsolvable. But
they’ve never been confronted by a serial killer. Until now. Rekke
receives a visit from Spanish chief inspector Rafael Corales, who is
unable to forget the brutal, unsolved murder of a young woman in
Santander in 1988. Now other bodies have come to light, marked with
signs that seem to be some kind of numerical order. Still recovering
from his latest manic episode, his relationship with Vargas strained by a
secret she’s keeping, Rekke agrees to help decipher these signs before
the killer strikes again. The victim was an aspiring writer, and clues
from her posthumously published short story about a stray dog draw Rekke
and Vargas deep into the murk of Sweden’s literary scene. To unmask the
killer, Rekke must relearn the difference between fact and fiction, and
discover what really happened that night back in the 1980s. In yet
another intricate and exciting puzzle mystery, David Lagercrantz draws
on the literary world that he—and we—know all too well to tell a story
about guilt, shame, repressed memories, human depravity, and publishing.
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