Author James Herbert on his experiences with ghosts
James Herbert has been speaking about his new book, which sees the return of parapsychologist David Ash.
The bestselling author described Ash as a story about a "cynical ghost hunter" who investigates a murder in a Scottish castle.
Talking to BBC Breakfast, Herbert also spoke about his own experiences with the paranormal, claiming he had once seen a ghost himself while on holiday in Marbella.