A young woman journeys to a distant castle on the back of a great white bear who is the victim of a cruel enchantment.

"When a sudden storm destroys Charles' ship and he is presumed dead, Rose believes something sinister is at work and she sets off on a perilous journey, with the fate of the entire world at stake."

On a quest to rescue his kidnapped sister, Collun discovers that he is a key figure in the struggle to save the kingdom of Eirren from conquest by Medb, the Queen of Ghosts.