Horror writer GJ Phelps is hoping to collect some more spooky stories when he appears at South Warwickshire Literary Festival. Horror writer GJ Phelps is hoping to collect some more spooky stories when he appears at South Warwickshire Literary Festival. A HORROR writer is hoping to get spooked when he appears at South Warwickshire Literary Festival. And he wants to the audience to share their own supernatural experiences when he talks about the stories that inspired 13 Doors at the festival in Leamington. 13 Doors is published by the Book Guild and is available from book shops and online priced £9.99.