William Hope Hodgson – Carnacki The Ghost-Finder [# 6] (Sphere, 1974)
Carnacki …. ‘ghost finder’ and ‘ghost breaker’, a psychic sleuth fighting against sinister forces from Outside. These nine spinetingling tales of conflict with dark powers lurking on the rim of human consciousness include such classics as The Gateway of the Monster, The Thing Invisible and The Searcher of the End House.
Carnacki The Ghost-Finder is Volume 6 in the Dennis Wheatley Library of the Occult.