Heaven can go to hell. Until her cousin slaughtered the supernal family, Anazakia's father ruled the Heavens, governing noble Host and Fallen peasants alike. Now Anazakia is the last grand duchess of the House of Arkhangel'sk, and all she wants is to stay alive. Hunted by Seraph assassins, Anazakia flees Heaven with two Fallen thieves—fire demon Vasily and air demon Belphagor, each with their own nefarious agenda—who hide her in the world of Man. The line between vice and virtue soon blurs, and when Belphagor is imprisoned, the unexpected passion of Vasily warms her through the Russian winter. Heaven seems a distant dream, but when Anazakia learns the truth behind the celestial coup, she will have to return to fight for the throne—even if it means saving the man who murdered everyone she loved.

Against the pristine ice of Heaven, spilled blood and a demon’s fire will spark celestial war. 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.

Full-scale war has broken out in Heaven, and Anazakia must embrace her destiny, leading an army of Virtues into battle against a Host of enemies to restore the House of Arkhangel’sk. Furious with her for putting her trust in the angel who has done them all irreparable harm, Vasily tries to ignore his growing resentment, while Belphagor returns to the world of Man with a cadre of beautiful androgynous Virtues to restore the sundered alliance between the Fallen and the gypsy underground. Without their help in enlisting the terrestrial forces of Grigori and Nephilim, Anazakia’s Virtues are hopelessly outnumbered. But there are more things in Heaven and Earth than any of them have dreamt of, and those they cannot see will mean the difference between victory and losing everything.