What was the first Cormoran Strike novel published under J.K. Rowling’s Robert Galbraith pen name?

The first Cormoran Strike novel published under J.K. Rowling’s Robert Galbraith pen name was The Cuckoo’s Calling.

The novel was published in April 2013 and introduces Cormoran Strike, a private detective working in London. Strike investigates the death of model Lula Landry, while Robin Ellacott begins working as his temporary secretary and becomes his important professional partner.

The book initially attracted attention as a promising debut crime novel credited to an unknown author. Rowling’s identity was disclosed later in 2013, after linguistic analysis and reporting connected her to the work. The revelation caused a sharp increase in sales.

The series continued with The Silkworm, Career of Evil, Lethal White, Troubled Blood, The Ink Black Heart, and The Running Grave. The books have continued to use Robert Galbraith as the author name.