The Ex-Duke (US title The interloper) is a 1924 thriller novel by the British author E. Phillips Oppenheim.

In 1926 the novel was adapted into the American silent film Prince of Tempters directed by Lothar Mendes and starring Lois Moran, Ben Lyon, Lya De Putti.

This article about a thriller novel of the 1920s is a stub.

You can help Wikipedia by expanding it.See guidelines for writing about novels.

Specific suggestions might be found on the article's talk page.