"King Duncan and Princess Cassandra are trapped in the south tower of Castle Araluen and under near-constant attack from the Red Fox Clan. Sir Horace and Ranger Commandant Gilan are holed up in an old hill fort, surrounded by the enemy. And Ranger's apprentice Maddie is the only one who can save them all."-- Maddie, Will Treaty's fearless young apprentice, aided by Hal, Thorn, and the rest of the Heron Brotherband, tries to rescue her mother, Princess Cassandra, who is trapped in Castle Araluen. Amazon.com