The exiled heir to the throne of Heaven, Grand Duchess Anazakia, and her demon companions, Belphagor and Vasily, have made a comfortable home in the Russian city of Arkhangel’sk, but their domestic bliss is short lived. When their daughter, Ola, is taken as a pawn in Heaven’s demon revolution, the delicate fabric of their unorthodox family is torn apart—threatening to separate Belphagor and Vasily for good.

Anazakia is prepared to move Heaven and Earth to get her daughter back from Queen Aeval, risen in Elysium from the ashes of temporary defeat. But Aeval isn’t the only one seeking Ola’s strange power.

To conquer the forces amassing against them, Anazakia is prophesied to sacrifice one close to her heart, while Vasily’s fire will prove more potent than anyone suspected. In the ultimate battle for supremacy over Heaven’s empire, loyalties will be tested and secrets will be revealed, but love will reign supernal.