Sophie Hannah is a prize-winning poet, whose work is studied in schools and universities across the country, and the author of nine dark psychological thrillers. Alongside the thrillers - one a year - she's edited an anthology of poems about sex, composed love lyrics for contemporary composers, and has been writer in residence at Trinity College Cambridge. Her latest project is to write a new Poirot mystery; she was chosen by the Christie Estate to fill in one of the great detective's missing years. Her Poirot mystery is published in early September.

Produced by Elizabeth Burke. A Loftus production for BBC Radio 3.