The Morals of Marcus Ordeyne is a 1905 British novel written by William John Locke.

[1] A middle aged schoolmaster unexpectedly inherits money and a title.

Walking through a park he finds a young girl weeping - she's a harem girl who has been abandoned by her would-be lover after escaping from Syria.

In 1915, the first silent version, The Morals of Marcus, was made with Marie Doro who starred in the 1907 play.

In 1935, Miles Mander directed a sound version of The Morals of Marcus, with Ian Hunter in the title role.