Daughter of winter

When the feared Morena saves her sister Vesna from execution, she has hope of breaking the curse for the first time in ages. On the threshold of adulthood, they are trapped in the world of the living. Morena has become immortal and Vesna is stuck in a hopeless cycle - always dying on the shortest day of the year and then being reborn. As they gradually uncover the secret behind their cursed fate, they must face not only the ruler of the underworld and mythical monsters, but also ordinary human malice and their own past.