This book is so good; fair warning, if you go into this duology hungry for more crows content, you will be disappointed and think the books are slow-paced. But if you go into this duology the way that you should, starving for more nikolai+zoya+ravka content you will be FED. Do not get me wrong there are crow crumbs in the king of scars duology but Ravka and its leaders are the stars of the show. Once I got into this book I couldn't stop. I already want to reread it. I'd recommend refreshing yourself on the events of the shadow and bone trilogy before jumping into king of scars.