King of Scars, published in 2019, is the first book in Leigh Bardugo's *King of Scars duology, which takes place in the Grishaverse fantasy world. The story follows King Nikolai Lantsov, a war hero and prince with a dark magic growing inside him. Set one year after the Six of Crows series, Nikolai must confront his inner demons and risk everything to save himself and his country.