Synopsis:
Giles' quiet existence in Sunnydale is jeopardized when a murder victim, who is found to be linked to Giles' past, is discovered on the steps of the school library. Meanwhile, when the Mark of Eyghon - a demon that takes possession of a dead host - takes over Ms. Calendar, Buffy and Angel discover the one way to save her soul.

Written by: Dean Batali and Rob DesHotel
Directed by: Bruce Seth Green
Original Airdate: November 10, 1997