After the death of his Sun Summoner, Alina Starkov, the Darkling is forced to either give up or find an alternative. Luckily for him, he's found just the right alternative in Zeya Romanov, a young woman working in her father's tavern. Her powers are like nothing anyone has ever seen before, and the Darkling realizes she has more power than he'd thought. Zeya could be his greatest strength...or his greatest weakness.