A year after The Dark Princess ends (That's the first book), war has taken over Colland. All around the castle, there are battles going on. Mary has been looking for a solution to ending the war all year, and she's finally found it. The answer lies in the DragonOrb, which has the power to grant one wish to whoever can find it. It's up to her, Milo, and Brooke to find it and use it to end the war in their favor, before Sasha can end it in hers.