Meanwhile, Thisbe is trapped underground in the catacombs, where the ancient dragon rulers are buried. Along with fellow prisoners, Thisbe's job is to transport dragon bones from her crypt to the extracting room, where others extract the magical properties dormant in the bones. When it appears no one is coming back to rescue her, Thisbe must train in secret, trying to learn how to control her fiery magic and use it to escape. As her situation becomes more grave, she might even have to align herself with the ultimate evil. Unfortunately, it's a risk she has to take.
(From the The Unwanteds Series shelf.)