A best-selling author of novels, short stories, magazine articles, translations, and plays, Oppenheim published over 150 books. He is considered one of the originators of the thriller genre, his novels also range from spy thrillers to romance, but all have an undertone of intrigue. He also wrote under the name of Anthony Partridge. The Master Mummer begins: Sheets of virgin manuscript paper littered my desk, the smoke of much uselessly consumed tobacco hung about the room in a little cloud. Many a time I had dipped my pen in the ink, only to find myself a few minutes later scrawling ridiculous little figures upon the margin of my blotting-pad. It was not at all an auspicious start for one who sought immortality.