Overview
A tour guide is taking a group of visitors around a 12th-century manor and brings them to a mysterious room with no windows or doors, an "oubliette", from the French for "to forget". Unknown to the present-day tourists, they are accompanied in the room by Anne who lived in the manor 500 years previously as a servant girl to its lord, James Darlow. She is soon joined by a group of other servants who have been stealing from their master, and by Susan Makem, an eccentric loner rumoured to be a witch. As the story unfolds the reason for the "oubliette" becomes clear.