Noble Sinner by TS Snow

The old Gods declared the kan Ingans would rule the galaxy for three thousand years, but now, the Gods are gone. Their time is coming...

Deröés kan Ingan's throne is coveted by all. He's the ruler of the known galaxy. Hundreds of suitors have come, but not one of them has captured his heart... until a mysterious woman named Elizabeth Sheffield.

Only, love is far from her intention. She wants his power, and so too does his nephew, his only heir, who fears this new Queen may steal what is rightfully his.

And beyond them all is a vast empire of people that don't view an outsider like Elizabeth as worthy of ruling anything.

Scheming, intrigue, war ... If you liked the characters from Firefly, with the passion and planetary intrigue of Pandora, and the action from The Tomorrow War, try Twilight of the GodChosen.