Prize of the Warlord by Rebecca F. Kenney

When Ixiana is kidnapped from her family’s fortress by a brutal warlord, she fears physical harm of the worst kind. But the warlord is after a ransom, something to change the fate of his people. Ixiana is simply a means to an end–an annoying captive whose weakness frustrates him. When he starts teaching her to fight, it’s painful for both of them–until their mutual anger and frustration ignites a new kind of fire.
This adult romance has mild-to-medium heat and spice, with dark themes.
TW: Doubtful consent (kissing, touching) and sexual threat, violence, mention of ra-pe, captor-captive romance, monsters, racial/social injustice and oppression.