Crowns of Fate (Broken Prophecy #3) by Anna Applegate & Helen Domico:
 
My mate is captured. My kingdom has fallen. And my enemies? They have no idea I’m coming to destroy them all.

My entire life, I believed I had no magic. But during our battle with King Dargan, my power erupted, showing the world the magic inside of me. Light magic sparked by my acceptance of myself and my mate.

Leaving Kade behind was a nightmarish kind of torture, but as the darkness overtook him, he begged me to run, so I did. Now, with Kade’s life in Thames’s hands, I must return home to win back my kingdom, gather an army, and find a way to save the only family I have left.

Trapped for a thousand years, Thames is prepared to rule us all. His darkness is spreading, creating more dark ones by the minute, and a secret weapon threatens to give him the victory he so desperately desires.

It's not just my kingdom at stake, but all of Atheria. Every last one of those responsible for the deaths of my loved ones is about to pay in blood. This battle will decide our fate. Will we survive and live in the light, or will the darkness destroy us for good?

It all comes down to this. For Atheria, we fight.

Crowns of Fate is the final book of The Broken Prophecy Series, a slow burn, NA / adult romantasy. Readers are encouraged to review the list of content notes inside before diving into this shadow daddy meets stabby FMC fantasy romance.