Celebrated British author JK Rowling (of Harry Potter fame) has penned her second crime novel - The Silkworm - under a pseudonym. The novel, to be published in Jun-9, will again feature Cormoran Strike, the private detective Rowling introduced in 2013's 'The Cuckoo's Calling'. The author's pseudonym Robert Galbraith was unmasked last year by a member of her legal team.