Majavateoria The Beaver Theory

The Rabbit Factor Trilogy #3

The going gets tough and the tough get tougher in the comical, touching conclusion of The Rabbit Factor Trilogy.

How best to reconcile the ongoing skulduggery of the adventure-park business with the unpredictable realities of life in a blended family? The two appear to have only one common denominator: neither is well equipped to cope with a rising body count. In order to solve this seemingly impossible conundrum, Henri Koskinen has to step far beyond the order and precision of his mathematically-defined comfort zone.

In The Beaver Theory, Henri Koskinen, the actuary and adventure-park entrepreneur who has won the hearts of readers around the world, encounters the biggest challenge of his career. The first part of the trilogy is currently being adapted for the silver screen in Hollywood.

Named one of the Thriller Books of the Year 2023 by The Sunday Times.


Nominated for CrimeFest's Last Laugh Award (Best Humourous Crime Novel) UK 2024
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  • “It’s extremely funny, with a wicked line in social satire (…)”

    Daily Mail, UK

  • “This is a joyous, triumphant conclusion to Tuomainen’s trilogy about the improbable manager of an adventure park in Helsinki. (…) this is the comic thriller of the year.”

    The Times

Photo: Ville Juurikkala Antti Tuomainen
  • Literary
Reading material

Finnish edtion

Rights sold

Arab world, Aser Al-Kotob

Denmark, Politiken

Estonia, Varrak

Finland, Otava

France, Fleuve Noir

Germany, Rowohlt

Hungary, Animus

Italy, Mondadori

Netherlands, Prometheus

Norway, Bonnier Norsk

Poland, Albatros

Russia, Sindbad

Slovenia, HKZ

Sweden, Romanus & Selling

Türkiye, Ithaki

UK, Orenda (World English)

Film rights sold

US, Amazon Studios

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The Rabbit Factor Trilogy