Dzur-Khan by Bella Blair

I should hate her. Instead, all I want is to make her MINE.
AMBER: To catch my twin sister’s killer, I have to join an expedition to another planet and pretend to be her. My thirst for revenge drives me through the alien wildlands, where I home in on my prey.
The alien planet’s strange beauty is getting to me more with every passing day. Stranger yet, I’m becoming more comfortable pretending my sister’s life is mine.
Things become even more complicated by the arrival of another barbarian leader and my attraction to him is instant. When he offers to take the group harboring Dawn’s killer back to the portal, I know I need to join him. Now I just have to figure out how to bring a killer down and resist my growing desire for this alien khadahr.
DZUR-KHAN: Ever since the majority of our females died during a tragic cave collapse caused by the damned humans, I’ve hated them. Now, they might just be our only answer to saving my species. When word reaches me that one of my fellow khadahrs has dared the unthinkable and invited human females to Vandruk, I have to see them for myself.
The moment I lay eyes on Dawn, I know two things: the name doesn’t suit her, and I’m irrevocably drawn to her. She is daring and brave, beautiful and determined. I have to make her mine despite all the mysteries surrounding her. Then again, I’ve never shied from a challenge.