Soren, Gylfie, Twilight, and Digger make a harrowing journey to the Great Ga'Hoole Tree--a mythical place where an order of owls rises each night to perform noble deeds--seeking help to fight the evil afoot in the owl world.

"Enraged by his clash with Soren and driven by and 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."--p.4 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.

Soren and Coryn read the ancient legends of Ga'Hoole in order to find a way to prevent the victory of evil in their present world.

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.

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.

In this prequel, Ezylryb the Screech owl recounts the story of his life in the Northern Kingdoms--his rise through the ranks of the Killian Army, his brother's betrayal, and his friendship with Octavia the snake, to finally become a Guardian of Ga'Hoole.