Lucy was the daughter of Morticia and Hannibal Grandchester. According to a legend she killed her parents and was put into a mental asylum. She escaped on her 18th birthday and was found hanging in the attic of the Grandchester Mystery Mansion 9 days later in an apparent suicide. Her ghost haunts her family mansion, which was turned into an attraction for Nuka-World. Her ghost can be seen around the mansion several times, disappearing into dead ends when the Sole Survivor comes close.