- Episode Name:The Lesser Key of Solomon
- Air date:10/7/2013
- Summary:Lt. Abbie Mills and Ichabod Crane search for Abbie's estranged sister, Jenny, who has escaped from a Sleepy Hollow psychiatric hospital. In a game-changing episode, which includes flashbacks to the real Boston Tea Party, Abbie and Ichabod discover more about the evil they are facing... and finally learn its name.