Deep in the wilds of Scotland, land of ancient warrior kings and myths, there is a deep secret. The secret is a colony of beavers, a species that is craved for their fur pelts, but vilified for what humans consider to be the destruction of their land. No beaver has been spotted in Scotland or England for over five hundred years, until the young beaver, Dunwattle, is sighted! Dunwattle's flight is driven by the presence of a ghostly figure, a figure of a mysterious young girl who is almost one thousand years old. And now Dunwattle is destined to be destroyed for revealing the hidden colony, but his best friend Locksley is determined to save him. Will their ancient beaver colony survive?

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. Will they be able to save Elsinore, the innocent animals, and themselves? Join Dunwattle and Locksley as they embark on this winding adventure, explore unknown lands beyond their pond, and endeavor to save their world and all the creatures in it.