Helene Aquilla, the Blood Shrike, is desperate to protect her sister's life and the lives of everyone in the Empire. But she knows that danger lurks on all sides: Emperor Marcus, haunted by his past, grows increasingly unstable and violent, while Keris Veturia, the ruthless Commandant, capitalizes on the Emperor's volatility to grow her own power- regardless of the carnage she leaves in her path. 13+ The highly anticipated third book in the bestselling "Ember Quartet".