The Heir and the Dragon
Fireheart.
After the four elemental stones have been stolen, the magical kingdoms of Castamere and Everus find their kingdoms slowly dying due to the Great Plague. To restore order and balance, the stones must be found and returned to the Dragon's keep.
Aeryn is the lost queen of Everus and heir to the Dragon Flame elemental stone. After the great war that leaves both kingdom in shambles, a dangerous sacrifice is preformed and she absorbs the power of the Dragon flame stone to keep it from getting into the wrong hands. The young queen is taken away from her kingdom few days after for her protection. She grows up as a commoner in her rival kingdom till she is kidnapped by a fanatic who sees the power in her fiery eyes.
He enrols her into the Queenstrial as one of the thirteen maidens vying for the Crown Prince of Castamere, Lucien's hand in marriage. Her task is simple, spy on the Crown Prince and retrieve the elemental ice stone or risk the kingdom of Castamere and Everus destroyed by the great plague.
Falling in love with the Crown Prince was not in the equation especially when he is also hiding a very dangerous dark secret.