The estate of late British author Adrian Jacobs has named JK Rowling in a lawsuit alleging she stole ideas for her popular Harry Potter books from him. The lawsuit, filed in a London court, against Bloomsbury Publishing PLC for alleged copyright infringement, claims Rowling’s book Harry Potter and the Goblet of Fire copied substantial parts of Jacobs’ 1987 book, The Adventures of Willy the Wizard _ No. 1 Livid Land.