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 and her brother Navin head for Kanalis, a beautiful and mysterious city of waterfalls, where they hope to find the antidote for the poison that felled their mother.
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.
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.