Media playback is unsupported on your device

Author James Herbert on his experiences with ghosts

3 September 2012 Last updated at 12:54 BST

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.