Prince Caspian: The Return to Narnia tells the story of the Pevensie children's second trip to Narnia. They are drawn back by the power of Susan's horn, blown by Prince Caspian to summon help in his hour of need. Caspian has fled into the woods to escape his uncle, Miraz, who had usurped the throne. The children set out once again to save Narnia; and aided by other Narnians, and ultimately by Aslan, they return the throne to Caspian, the rightful ruler.