Newbery Honor winner Kathryn Lasky, author of the bestselling Guardians of Ga'Hoole series, delivers the second book in her new middle grade adventure series about a colony of beavers on a courageous quest to save the swan that protects their world. Return to the brilliant, adventure-filled world of Glendunny. Dunwattle and Locksley are going on their greatest journey yet in their search for their beloved mother figure, Elsinore the swan, who has been kidnapped by dark forces. Little do they know, they have a much larger expedition in store when they discover other persecuted animals and baby otters being held against their will for nefarious purposes.