When author Robert Galbraith entered the crowded crime novel market last year, he was an instant hit with both readers and critics. Three months after private investigator Cormoran Strike – an army veteran and the illegitimate son of a rock star – made his debut in The Cuckoo’s Calling, Robert Galbraith was exposed as a pseudonym for Harry Potter author J.K.Rowling. Today, in an exclusive extract, we publish the first chapter of the much anticipated second Galbraith novel, The Silkworm.