Kingdom of the Feared - Kingdom of the Wicked #3 by Kerri Maniscalco

Two curses.

One prophecy.

A reckoning all have feared.

And a love more powerful than fate. All hail the king and queen of Hell.

Emilia is reeling from a shocking discovery about her sister, Vittoria. But before she faces the demons of her past, Emilia yearns to claim her king, the seductive Prince of Wrath, in the flesh. She doesn't just desire his body; she wants his heart and soul-but that's something the enigmatic demon can't promise her.

When a high-ranking member of House Greed is assassinated, damning evidence somehow points to Vittoria as the murderer. Now, Emilia will do anything to get to the bottom of these accusations against the sister she thought she knew.

Together, Emilia and Wrath play a sin-fueled game of deception to solve the murder and stop the unrest that's brewing between witches, demons, shape-shifters, and the most treacherous foes of the Feared. Emilia was warned that when it came to the Wicked, nothing was as it seemed. But have the true villains been much closer all along?