Sovereign by Celia Aaron

The Acquisition has ruled my life, ruled my every waking moment since Sinclair Vinemont first showed up at my house offering an infernal bargain to save my father’s life. Now I know the stakes. The charade is at an end, and Sinclair has far more to lose than I ever did.

But this knowledge hasn’t strengthened me. Instead, each revelation breaks me down until nothing is left but my fight and my rage. As I struggle to survive, only one question remains. How far will I go to save those I love and burn the Acquisition to the ground?

Full disclosure: This book is a DARK romance with elements of BDSM, slavery, violence, and super-hot sex. It is the last of the Acquisition trilogy, no cliffhanger. If you’re good with these caveats, enjoy!