Newbery Honor Author: "A marvelous adventure... There is an astonishingly detailed mythology, language, and history to the beaver world... enchanting." -Booklist (starred review) Deep in the wilds of Scotland, land of ancient warrior kings and myths, there is a secret-a colony of beavers, a species coveted for their fur pelts, but vilified for what humans consider 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? From the New York Times-bestselling author of the Guardians of Ga'Hoole and Bears of Ice series, this sweeping middle-grade animal adventure with loyal beavers, a cultured swan, and ominous lynxes around every turn is a captivating tale about heroism, loyalty, and the courage to speak truth to power. "Themes of belonging and friendship are well conveyed... as are the complexities of this industrious world of creatures."-Publishers Weekly "Larger, relevant themes of immigration and racism are organically worked in... an enchanting introduction to a wonderful, new natural world." -Booklist(starred review) "Draws readers deeply into a mystical world and leaves them wishing for more." -Kirkus Reviews (starred review)