Bound to the Shadow King: An Enemies to Lovers Forced Proximity Romantasy (The Dark Realm Series) by Ruby Vale

I stole the Obsidian Veil from the Shadow King... now he owns me. Lucian Blackwell is everything I should run from—arrogant, ruthless, dangerous—and hotter than hell. He wants to use me as a weapon. I’m going to use him right back. He thinks he’s in control. But when the sparks ignite between us, there’s no telling who’s going to burn first. Bound to the Shadow King is a steamy tale of blackmail, betrayal, enemies-to-lovers tension, a reluctant alliance, and the kind of slow-burn that scorches everything in its path.