Katy Duffield

The Cuckoo's Calling is a crime fiction novel written by British author J. K. Rowling, published under the pseudonym Robert Galbraith. It is the first novel in the Cormoran Strike series of detective novels and was first published on 4 April 2013. It was followed by The Silkworm in 2014, Career of Evil in 2015, Lethal White in 2018, Troubled Blood in 2020, The Ink Black Heart in 2022, and The Running Grave in 2023. An eighth book The Hallmarked Man was published on 2 September 2025.