Wieża Jaskółki (Saga o Wiedźminie, #4)

The Tower of the Swallow, published as The Tower of Swallows in the United States (Polish original title: Wieża Jaskółki) is the fourth novel in the Witcher Saga written by Polish fantasy writer Andrzej Sapkowski, first published in Poland in 1997. It is a sequel to the third Witcher novel Baptism of Fire (Chrzest ognia) and is followed by the final entry in the series, The Lady of the Lake (Pani Jeziora).