The Evergreen Heir (The Five Crowns of Okrith #4)

"If allowed, Neelo Emberspear would never leave the library. Reluctant to take the throne despite their mother's faltering health, the neurodivergent bookworm craves escape from their arranged marriage to charming fae warrior Talhan Catullus. But they know their duty can be put off no longer when their mother, the drug-addled queen, disastrously lights the castle on fire. Fighting to save their mother's life and keep her on the throne, Neelo is astonished when bonding over the written word brings them closer than ever to their cavalier, soon-to-be husband. But the non-binary heir's growing affections may be cut short with witch uprisings threatening to topple the entire continent. Can Neelo claim both love and dominion before their court is reduced to ash?"--