From Reversal of the Heart, and the main character!
When Prince Sorron murdered the Dragon Cub, and steals the Crystal from it's chest. The Dragon Serrifas, the mother of the child seeks vengeance, and wants to avenge it's death. So curses Kyra, whom was given the crystal as a necklace, and transforms her into a Dragon.
Kyra was falsely accused for killing the Princess!
details about the Dragon!Edit
The Dragon has features similar to a Swan, and the Dragons from books, and folklore, she was more beautiful than the Dragons that were once human (like in Bartok the Magnificent, and in Sleeping Beauty!)