The Lady of the Lake (Polish original title: Pani Jeziora) is the fifth and final novel in the Witcher Saga written by Polish fantasy writer Andrzej Sapkowski, first published in Poland in 1999. It is a sequel to the fourth Witcher novel, The Tower of Swallows (Wieża Jaskółki).
The story opens with Ciri bathing in a lake from another world. As she does so, Sir Galahad, King Arthur's knight, stumbles upon her. After mistaking her for the Lady of the Lake, they then talk and Ciri recounts her story, but warns him it doesn't have a happy ending. She is shown sad and coping with her pain, after confessing to Galahad that the blood of her clothes is because in recent times, she tried to save her friends but they died in her arms.
