Complete story — includes the ending
Ichabod and Abbie investigate a case involving the Jersey Devil, and learn that the person responsible was a man named Dr. Japeth Leeds, who used alchemy to mutate himself. When they uncover his lab, Abbie is drawn to the symbol, which is attached to a wax cylinder that they decide to play on the doctor's old phonograph. They watch a video recording that explains how the Hidden One was once the supreme ruler of humanity, until he was betrayed and cast down into the underworld to guard a box containing all of the evil in the world. Pandora, a servant of the other gods, betrays and destroys them before joining the Hidden One in his desire to restore himself to power. Ichabod and Abbie confront Dr. Leeds when they learn that he plans to help Pandora restore her husband using the sacred hourglass that maintains the balance of good and evil. Abbie destroys him with a lightning rod, but Pandora escapes with the magical sand needed to complete the hourglass.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Sleepy Hollow season 3. HTML formatting and reference markers removed. · Content license