The Girl in the Dark is a 1918 American silent mystery film directed by Stuart Paton. The script was written by Albert Kenyon, based on the 1914 novel The Green Seal by Charles Edmonds Walk.
A young woman named Lois, who was branded with Chinese letters on her shoulder as a baby, finds herself attracting nefarious attention as she grows older.
With no copies of The Girl in the Dark held in any film archives, it is a lost film.