- Author: Sax Author Record # 94725
- Legal Name: Sachs, Rudolph Michael
- Birthplace: Berlin, Brandenburg, Kingdom of Prussia, German Empire
- Birthdate: 22 May 1897
- Deathdate: 1969
- Language: English
- Webpages: bearalley.blogspot.co.uk
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Cover Art
- Star of Ill-Omen (1952)
- Told in the Dark (1952)
- A Book of Strange Stories (1954)
- The Island Where Time Stands Still (1954)
- Hero's Walk (1955)
- His Last Bow (1955)
- That Hideous Strength (1955)
- The Black Magic Omnibus (1956)
- The Ka of Gifford Hillary (1956)
- To the Devil - a Daughter (1956)
- Plot and Counterplot: Three Adventures of Gregory Sallust (1959)
- The Satanist (1960)