Wrath and Ruin by Penn Cassidy

Blurb:

A long forgotten plague is clawing its way back across the empire, leaving death in its wake. And the one thing that has always been my curse—the poison magic in my veins—might be the only cure.

Now, I’m on a journey to a kingdom on the brink of war, stuck in close quarters with the men who want to own me, save me, or me. The prince, the bodyguard, and the underlord who holds my leash are all playing their own games, but they don’t realize that I’m the one with all the power.

Just when I think I have the upper hand, a ghost from my past appears in the place I least expected. He knows the real monster I am and the truth I’ve been hiding. But I know his truth too.

This is Book 2 of The Undesirables romantasy series.