The battle for the crown has begun, but which of the three sisters will prevail? In the thrilling sequel of the Tres Coronas Oscuras saga, Fennbirn’s deadliest queens must face the one thing standing in their way of the crown: each other. After the unforgettable events of the Quickening and with the Ascension Year has started, all bets are off. Katharine is stronger than ever before. Arsinoe, after discovering the truth of her secret powers, must learn how to use them without anyone finding out. And Mirabella, the strongest sister that all were certain would become the Queen, faces attacks that put those around her in danger that she cannot prevent.