Katar (novel)

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Katar (English title: The Chain of Chance) is a novel by Stanisław Lem, published in 1975. The novel is clearly grounded in the detective fiction genre, but Lem's treatment introduces many nontraditional elements. The reader is prompted not only to consider various suspects as possible culprits in a series of murders, but also the possibility that they have all happened purely by chance (hence the English title). In this way, the natural laws of probability and chaos theory play the role of suspects and characters in a murder mystery, lending elements of science fiction to the novel, despite its being set in the present.

[edit] Plot

A former astronaut is hired by a detective agency to help in an investigation of a case of mysterious deaths. Several victims became mad and committed suicide during their vacation in Napoli, apparently without reason. Due to certain similarities in the circumstances of the deaths the case is assumed to be a serial murder by poisoning, although it is never certain what (if any) real connection exists between the victims.

During the investigation, it becomes apparent that certain innocent chemicals can be combined into a strong depressor, a kind of chemical weapon. The hero experiences its effects, however his training helps him to survive and solve the case. He discovers the industrial sources of the chemicals, and demonstrates how random chance chemical reactions led to the string of deaths.