Cryptic visits from the spirit of Avatar Yangchen herself lead Aang to discover a jointly owned Fire Nation and Earth Kingdom refinery-operating on land sacred to the Airbenders! Is this the cause of the pollution Aang finds there, or is a more mysterious
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.
