"Before he led Ravka's Second Army, before he created the Fold, and long before he became the Darkling, he was just a lonely boy burdened by an extraordinary power. Eryk and his mother, Lena, have spent their lives on the run. But they will never find a safe haven. They are not only Grisha--they are the deadliest and rarest of their kind. Feared by those who wish to destroy them and hunted by those who would exploit their gifts, they must hide their...