"Enraged by his clash with Soren and driven by an all-consuming desire for power, Kludd and his group, the Pure Ones, launch an attack upon the Great Ga'Hoole Tree. The noble owls who live there must fight fiercely to protect their resources and defend their honor."--Cover, p. .
After Kludd's death, his mate Nyra is determined that her hatchling, Nyroc, will fulfill his father's destiny of viciously oppressing all of the owl kingdomes, but Nyroc, fed by scraps of forbidden legend and news of a place where goodness and nobility reign, defies his mother and his destiny.
When the Band is exiled, old friends, loyal family and allies devise a plan to free young king Coryn and the tree from the hold of Striga, a former dragon owl from the Middle Kingdom beyond the Unnamed Sea.
The strange, maniacal blue owl known as the Striga has been rousted from the Great Ga'Hoole Tree. Nyra, leader of the vicious Pure Ones, is either dead or laying low in some distant land,leaving the tree finally at peace. As if fed by an invisible spring, learning and the lively arts flourish at the great tree and spread throughout the owl kingdoms.