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.

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 battle against the sinister Pure Ones. Meanwhile, in the Southern Kingdoms, St. Aggie's has fallen to the Pure Ones, and they are using its resources to plan a final invasion of the Great Ga'Hoole Tree. With the future of all Owldom in the balance, the parliament of Ga'Hoole must decide whether or not

...

As war erupts between the evil Pure Ones and the brave owls of Ga'Hoole, Soren is summoned by the elders to return to St. Aegolius Academy for Orphaned Owls in order to restore peace.

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.

Having a Bloomtastic Festival at school to celebrate spring is a great idea--but Eva Wingdale, a young owl, discovers that it is also a lot of work, and there is nothing wrong with asking her friends for help.

While Coryn and his companions journey to a wintery realm where mysterious owls live, the king becomes the target of an assassination plot and it is up to Primrose and Eglantine to save him.

After falling in love with an Abenaki Indian woman, a white great horned owl named Wabi transforms into a human being and has several trials and adventures while learning to adapt to his new life.

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.

"Even though Soren was kidnapped and taken to the St. Aegolius School for Orphaned Owls, he has longed to see his sister, Eglantine, again. Now Eglantine is back in Soren's life, but she's been through an ordeal too terrible for words. And Ezylryb, Soren's mentor, has disappeared ... In order to rescue him, Soren must embark upon a perilous quest."--P. [4] of cover.