King of Scars

The prince with a demon curled inside his heart. The people of Ravka don't know what Nikolai Lantsov endured in their bloody civil war and he intends to keep it that way. Yet with each day a dark magic within him grows stronger, threatening to destroy all he has built. Zoya Nazyalensky has devoted her life to rebuilding the Grisha army. Despite their magical gifts, Zoya knows the Grisha cannot survive without Ravka as a place of sanctuary — and she will stop at nothing to help Nikolai secure the throne.
Far north, Nina Zenik wages her own kind of war against the people who would see the Grisha destroyed. Burdened by grief and a terrifying power, Nina must face the pain of her past if she has any hope of defeating the dangers that await her on the ice. Rarka's king. Ravka's general. Rarka's spy. They will journey past the boundaries of science and superstition, of magic and faith, and risk everything to save a broken nation.
But some secrets aren't meant to stay buried, and some wounds aren't meant to heal.