After living with dragons her entire life, riding one through the skies and then falling almost to her death, Ruby ends up in a crater four acres across, with no one but a stranger and his dragon, and hers. Quickly discovering that she could possibly be trapped there forever, changed from what she used to look like, Ruby and her new friends work their very hardest to get out of the place. Why they're trapped there and how? Neither of them knows. Yet.