The eleventh title in the New York Times bestselling Guardians of Ga'Hoole series brings Hoole to kingship and the legends to fulfillment, signaling a return to the adventures of Coryn, Soren, and the Band.

In this next adventure, Hoole reclaims the throne of his father and goes on to wage a war against the forces of chaos, greed, and oppression led by the powerful warlord-tyrants. Grank, the first collier, uses his skills with fire and metals to forge weapons for battle. With great trepidation, Hoole uses the power of the ember in the final, decisive battle and wins. At the dawn of a new era of peace, Hoole searches for the ideal place to establish not a kingdom but an order of free owls—and finds the Great Tree.