Arthur must retrieve the Second Key from Grim Tuesday--an enemy who threatens the well-being of both Arthur's family and his world--in an adventure that will include stealing a Sunship and traveling to the Far Reaches for a showdown.

As the Conquerors try to destroy Erdas, Meilin -- fed up with waiting and ready to fight -- sets off into enemy territory with her spirit animal, a panda named Jhi. Her friends Conor and Abeke aren't far behind ... but they're not the only ones.