Emily, Navin, and their friends continue to battle the Elf King in hopes of destroying him forever, but one of his most loyal followers, Max, isn't making it easy for them.
Emily, Trellis, and Vigo visit Algos Island, where they can access and enter lost memories. They're hoping to uncover the events of Trellis's mysterious childhood, knowledge they can use against the Elf King.
After the tragic death of their father, Emily and Navin move with their mother to the home of her deceased great-grandfather, but the strange house proves to be dangerous.
Emily, Navin, and their crew of resistance fighters charter an airship and set off in search of the lost city of Cielis. There they hope to find help from the Guardian Council's powerful Stonekeepers.