The Secret Dragon

This is a book about dragons, secrets, and daring deeds: an imprisoned princess locked in her room because she refuses to marry an unknown prince, a starving dragon in a guarded valley who wants to save his world, and a young prince who wishes to marry the mysterious girl to prevent war between their kingdoms. So what can a Prince do to meet the girl who refuses to marry him? Keep his identity a secret, of course. Together, their daring deeds with a secret dragon could save all their worlds.