- "Den gröna dörren" (1946)
- "Lämna det åt mig" (1948)
- "Huset på kullen" (1950)
- "Logens hemlighet" (1952)
- "The Hidden Pool" (1954)
- "The Haunting of Hilary House" (1956)
- "The Dark Secret of Weatherend" (1958)
- "The Mystery of the Smuggler's Cove" (1960)
- "Spöket i spegeln" (1962)
- "The Curse of the Egyptian Mummy" (1964)
Facklitteratur:
- "Hur man skriver en mystisk berättelse" (1951)
- "The Art of the Mystery Novel" (1956)
- "The Craft of Mystery Writing" (1961)
- "The Technique of Mystery Fiction" (1964)
- "Konsten att skriva skönlitteratur" (1968)