Novels/Collections
- (Star of Ill-Omen)
- Black Magic
- Duke de Richleau
- The Devil Rides Out. 1934
- Strange Conflict. 1941
- Gateway to Hell. 1970
- (The Haunting of Toby Jugg. 1948)
- (To the Devil - A Daughter. 1953)
- (The Ka of Gifford Hillary. 1956)
- The Satanist. 1960
- (They Used Dark Forces. 1964)