The Great Ga'Hoole tree is a mythic place where Soren, Gylfie, Twilight and Digger seek to find the means to fight the evil that infects the kngdom. There they will be tested in ways they never dreamed, but there they can learn to become true Ga'Hoolian owls--brave, wise, honest, true.

"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"--Page 4 of cover.

Soren and his band must fly to the mysterious Northern Kingdoms to find allies against the Pure Ones who are about to launch another deadly attack against the great tree. The Grand Battle begins with the search for allies in the Northern Kingdoms and ends in The Burning that will change all Owldom forever. Soren and his band are sent to the mysterious Northern Kingdoms to gather allies and learn the art of war in preparation for the coming cataclysmic...

Nyroc has glimpsed a new destiny in the of his father's bones. In search of that destiny leaves for The Beyond the Beyond. Nyroc has exiled himself from the Pure Ones. He flies alone, feared and despised by those who know him as Kludd's son, hunted by those whose despotism he has rejected, and haunted by ghostly creatures conjured by Nyra to lure him back to the Pure Ones. He yearns for a place he only half believes in -- the great tree -- and an...

The golden age which is expected from the Great Ga'Hoole Tree turns gradually worse as the owls' young king hunts for the truth about his ancestry.