Which book did J.K. Rowling publish under the pseudonym Robert Galbraith in 2013?

J.K. Rowling published The Cuckoo’s Calling under the pseudonym Robert Galbraith in 2013.

The novel is a contemporary crime mystery featuring Cormoran Strike, a private investigator in London. It was released in April 2013 and initially received attention as the debut of an unknown author. The story begins when model Lula Landry dies, and Strike investigates whether her death was suicide.

Rowling’s authorship was revealed several months later. The revelation dramatically increased sales and confirmed that Galbraith was not a separate novelist. The subsequent books The Silkworm, Career of Evil, and Lethal White continued the same detective series under the established pseudonym.