"The Girl in the Tower" is an excellent addition to the Winternight trilogy. Katherine Arden has written another beautiful story about Vasya and her superstitious country, the cold and dark medieval Russia. Vasya has been labeled as a witch and flees from her home. She disguises herself as a boy and heads to visit her sister Olga. Trouble seems to follow Vasya everywhere she goes. But she is feisty enough to handle it all, or most of the trouble, anyway.
The frost demon, Morozko, makes his appearance as well in this sequel to "The Bear and the Nightingale." The swoon is strong but the frost demon resists his attraction to Vasya.
Arden is a gifted writer, blending fantastical Russia with history. I cannot wait for the third book in this trilogy!