The Mystery Girl_
Prince Sebastian of Lurania is forced to go into hiding when German forces invade his country. His niece, Countess Therese, is an ambulance driver with the French army. Her uncle requests that she meet him in a small town in Maine and bring the crown jewels with her. Unfortunately, a jewel thief finds out and makes a deal with the Luranian pretender to the throne: he will steal the jewels and he can keep them if he kidnaps and turns over the Countess to the usurper.
Starring
Ethel Clayton, Henry Woodward, Clarence Burton
Updated Feb 16, 2026
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Year context
The Mystery Girl was released 108 years ago in 1918.
Overview
Prince Sebastian of Lurania is forced to go into hiding when German forces invade his country. His niece, Countess Therese, is an ambulance driver with the F...
The Mystery Girl is a Crime, Drama film with a runtime of 0h 50m.
CAST (7)
Ethel Clayton
Countess Therese
Henry Woodward
Captain Thomas K. Barnes
Clarence Burton
Prince Ugo
Charles West
Chester Naismith
Winter Hall
Prince Sebasatian
Mayme Kelso
Merecedes Thackery
JP
J. Parks Jones
Ferdust
DETAILS
FREQUENTLY ASKED QUESTIONS
What is The Mystery Girl about?
Prince Sebastian of Lurania is forced to go into hiding when German forces invade his country. His niece, Countess Therese, is an ambulance driver with the French army. Her uncle requests that she meet him in a small town in Maine and bring the crown jewels with her. Unfortunately, a jewel thief finds out and makes a deal with the Luranian pretender to the throne: he will steal the jewels and he can keep them if he kidnaps and turns over the Countess to the usurper.
How long is The Mystery Girl?
The Mystery Girl has a runtime of 50 minutes (0h 50m).
Who stars in The Mystery Girl?
The cast of The Mystery Girl includes Ethel Clayton, Henry Woodward, Clarence Burton, Charles West, Winter Hall.
GENRES (2)
Crime
Drama