The four films are The Oubliette, The Higher Law, Monsieur Bluebeard, and The Ninety Black Boxes.
[1] The films were based on a series of short stories about François Villon written by George Bronson Howard.
The Oubliette was released in August 1914 and features Murdock MacQuarrie and Lon Chaney.
The Higher Law was released in September 1914 and features Murdock MacQuarrie and Pauline Bush.
The Ninety Black Boxes was released in November 1914 in two reels and features Murdock MacQuarrie and Doc Crane.