The Mystery of Lake Lethe
- Metai: 1917
- Šalis: United States of America
- Žanras: Mistiniai
- Studija: Vitagraph Company of America
- Raktažodis:
- Direktorius: Rollin S. Sturgeon
- Vaidina: Webster Campbell, William Duncan, Corinne Griffith, Anne Schaefer, Nell Shipman