Olivia O'Leary talks to two people who have had similar experiences. Crime writers Ian Rankin and Sarah Dunant discuss the modern detective hero and the differences between female and male detective stories.
Rankin has written a series based on an Edinburgh detective called Inspector John Rebus, which is currently being adapted for television. He explains what it is like to have a character realised, and possibly ruined, by someone else.
Dunant talks about Hannah Wolfe, the female Los Angeles-based private eye at the centre of her series of novels. She also explains why she will no longer write Hannah Wolfe novels and why her books are becoming noticeably darker.

(Repeated at 9.30pm)