Rumini the ingenious little mouse now sails west on the Queen of the Winds. Four nations live on the islands of the Golden Sea: the beavers, the snakes, the turtles and the creatures of light. These nations have lived in peace, but now one of the kings wants to conquer his fomer allies with a sordid ruse.
Rumini and his friends find themselves in the middle of the strife. It soon turns out that their only hope to get home is if by turning against the conqueror they help to bring peace to the four nations of the Beaver Alliance. But what can they do when their own mates become the enemy?