Sophie is settling in nicely to her new life in Havenfield. She's getting to spend time with rare, precious species -- including the first female Alicorn, who shows herself to Sophie and trusts no one but her. Sophie is tasked with helping to train the magical creature so that the Alicorn can be revealed to the people of the lost cities as a sign of hope. But the secrets buried deep in Sophie's memories remain, and before long she's back in incredible danger, risking everything to find the answers to questions that could save not only her life, but the life of someone close to her.