King of Battle and Blood

King of Battle and Blood (2021) is a romantasy novel that marks the beginning of Scarlett St. Clair’s Adrian x Isolde series. The story is told from Isolde’s first-person perspective as she navigates a political marriage with the invading vampiric Blood King Adrian in order to save her kingdom. As their romantic connection grows despite her early distrust, Isolde learns about Adrian’s world and experiences flashes of hidden memory that compel her to redefine her identity. Her journey toward full self-realization encompasses themes such as The Effects of Political Power on Personal Relationships, The Evolution of Identity Within Constraining Circumstances, and The Moral Complexities of Wartime Leadership.

In addition to King of Battle and Blood and its sequel, Queen of Myth and Monsters (2022), St. Clair has also published a seven-book series that reimagines the mythological figures of Hades and Persephone. The third installment in the Adrian x Isolde series is tentatively projected for release in 2026.

This guide refers to the 2021 Sourcebooks Kindle edition.

Content Warning: The source material and guide feature depictions of graphic violence, death, death by suicide, physical abuse, sexual harassment, and sexual content.