Alexandria “Alix” Watson finds comfort in books while working multiple jobs and struggling to get by after growing up in foster care. One night at the Boston Public Library, she discovers a hidden door leading to a magical place called the Astral Library, where people can escape into the worlds of their favorite books. Guided by the mysterious Librarian, Alix begins an incredible journey through famous literary worlds. But when a dangerous enemy threatens the library and everyone it has helped, Alix must help protect the magical place that could finally give her a new life.