Ash is James Herbert's most controversial novel, and will make you wonder what is fact and what is fiction.

Fear will let you in. Terror will keep you there.

They were miscreants with black souls, roaming the corridors and passageways. Infamous people thought long-deceased. Hiding and nurturing their evil in a basement full of secrets so shocking they would shake the world if they were ever revealed.

David Ash, ghost hunter and parapsychologist, arrives at Comraich Castle - a desolate, ancient place with a dark heart - to investigate a series of disturbing events. An incorporeal power has been ignited by a long-ago curse, fed and now unleashed by the evil of those who once inhabited this supposed sanctuary - and by some who still do. Yet their hour of retribution is at hand . . .