The Cuckoo's Calling is the first book in the Cormoran Strike series by Robert Galbraith (pseudonym of J.K. Rowling). The story introduces readers to private detective Cormoran Strike, who is hired to investigate the supposed suicide of a supermodel. As Strike delves deeper into the case, he uncovers a web of secrets and lies. With its well-crafted plot and compelling characters, The Cuckoo's Calling is a must-read for mystery book lovers.