In their magic treehouse, Jack and Annie are again transported to King Arthur's realm, where invisible beings, giant ravens, and mistaken magic spells have a duke's castle in an uproar on Halloween night.
In the Northwest Coast region of North America, people know Raven the Trickster can change his shape at will. When an old man steals all the light from the world and hides it in a special box, the people need Raven's help. Can Raven outsmart the old man?