A silent movie serial consisting of 16 two-reel chapters. 1. Hidden Power. 2. The Mutilated Hand. 3. The Poisonous Tarantula. 4. Plot of a Demon. 5. The Haunted House. 6. The Torture Chamber. 7. Drops of Blood. 8. The Time-Clock Bomb. 9. The Crystal Globe. 10. A Message from the Sky. 11. The Half-B...