Each morning, Odin, the father of the Gods, sends his two ravens: Hugin and Mugin out into the world to watch over the land. The players try to help the feathered spies along their way over the various lands of the northern hemisphere. To move the ravens, the players must play appropriate flight cards from their hands. They may also get help directly from Odin. With skillful use of the cards, a player can move his raven quickly over the land.