Oppenheim, E. Phillips: Jeanne of the Marshes. V1. 29 Aug 2011
 

Edward Phillips Oppenheim (October 22, 1866 – February 3, 1946), was an English novelist, in his lifetime a major and successful writer of genre fiction including thrillers .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.

Excerpt
"Ah!" he said. "I am a man whom it is not easy to deceive. I have seen very much of the world, and I know the ways of women. A woman who wants money, my dear Princess, is very, very clever, and not too honest."