King of Scars by Leigh Bardugo
Nikolai Lantsov has been awkward. Whatever he did in his country’s civil war is not known to anyone, either does he want anyone to know. Enemies come at his borders, now the young king must locate a way to replenish the money box of Ravka, build a new association and completely stop being fear to Grisha army, which was at once upon a time, a great army.
Every day brings with it a dark magic inside him to gather all strength to grow strong, scares to damage all that he has built, A young monk to help him along with a heroic Grisha Squaller, Nikolai has to travel to places having magic that survives to conquer the horrible heritage, he has built inside himself. He is in adanger of saving his nation and himself. Not all secrets stay buried, many wounds don’t heal.