On the Accidental Wings of Dragons — Julie Wetzel

When Michael Duncan is sent to investigate the disappearance of several dragon subjects, he finds himself in a bind. Locked in a dungeon, his only hope lies wrapped in a bundle of cloth tossed at his feet. One kiss and his life is changed forever. Hunted by his own people for crimes he didn't commit, Michael has to learn a whole new life at the hands of a beautiful woman. Can she help him clear his name, or will just being in her presence get him sentenced to death?
 

Carissa Markel doesn't know who this man chained to the wall is, but he's her only chance for escape. She has power, but, born without a voice, she lacks the means to wield it. One choice, made in desperation, sends them running for his life. Does she have the strength to help him clear his name? And what will her brother, the King of Dragons, do if he finds out what she's done? That's immaterial, the real question is... can she keep her hands off him long enough to find out? 
 
This is book one in the Dragons of Eternity series