Inferno

Inferno is the explosive, most anticipated, final book in Donna Grant's Dark Kings series featuring Con, the King of the Dragon Kings!
I knew what I wanted. And nothing was going to stop me.

King of Dragon Kings. Driven, ruthless, shrewd. The weight of survival for Constantine and his brethren has pushed him to set aside his own yearnings—for now. He's the most powerful of all Dragon Kings, and Con will stop at nothing to destroy anyone who dares to threaten his existence.
For years, Con has hidden his pain—his desperation—for there is one smoldering beauty that he craves above all else, even if he feels he doesn't deserve her. However, his enemies are at every corner. There is no one left to trust. But none of that matters anymore: There is only one thing that Con wants. With this one woman by his side, he can fight for the freedom of his fellow men-in-arms. All Con has to do is get her to surrender her heart...and be his for all time.