The final book in Lasky's best-selling animal series.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.But unbeknowst to the Guardians, in a long-empty cave deep in the Northern Kingdoms two ruthless villains join forces to conjure an ancient evil, an evil that will do their bidding and wreak havoc on the world.

Deep in the Northern Kingdoms, Nyra and the Striga join forces to conjure an ancient evil. When word of this growing malevolence reaches the Great Tree, the young king gathers his allies.

After a malignant power is summoned, the six owl kingdoms prepares for war, and while the Guardians of the the Great Ga'Hoole Tree call together an army of gadfeathers, kraals, polar bears, green owls, puffins, seagulls, and dire wolves, another army of free creatures travels to the Hot Gates of Beyond.

Bestselling author Kathryn Lasky takes flight once more with a brand-new Guardians of Ga'Hoole novel! An owlet hatches out onto Stormfast Island and into a world torn by war. For one hundred years, his people have fought off enemy owls from the Ice Talons, but the tide has turned. An invasion is coming, one the Kielian League won't have the strength to resist. Soon the tyrant owl Bylyric will rule over everything, and no honorable owl will be safe. Only the small owl from Stormfast stands between Bylyric and total victory. Lyze is not very impressive to look at, but he has a wild idea for a snake and owl strike unit that just might give the soldiers of the Kielian League the edge they need.This is his story, the story of an ordinary owl who rose to become Ezylryb of the Great Tree. This is the story of what it takes to make a Guardian of Ga'Hoole.

The adventure continues! In a land no owl knew existed, Soren, Coryn, and the Guardians find danger, knowledge, and new allies.Coryn and the Band have returned to the Great Ga'Hoole Tree and restored order. With the Ember safely hidden away, the tree shakes off its gaudy golden glow and recovers its natural majesty. Meanwhile, deep in the Palace of Mists, Bess finds an ancient map fragment that reveals that there are not 5 owl kingdoms -- as has been thought since time immemorial -- but 6. Coryn and the chaw of chaws set off to find this unknown land. In a landscape of perpetual winter, they discover a monastery of serene, learned owls, the likes of which no one has ever seen before.

"A young Barn Owl named Soren lives peacefully with his family. After he is pushed from his nest by his older brother, his idyllic world transforms into one of confusion and danger, as he is captured by evil chick-snatching owls and taken to the St Aegolius Academy for Orphaned Owls"--Goodreads.com.

The latest soaring installment of Kathryn Lasky's NYT bestselling Ga'Hoole seriesGrank raises the hatchling deep in a forest far from owls that would kill the royal chick named Hoole to end the kingly line. His mother comes to visit, in disguise, and departs again. Not even the chick must know his mother's identity. It would give him away as Hrath's heir. Sent by an evil warlord, a hagsfiend attempts to lure young Hoole away when he first learns to fly. Grank realizes that the same evil forces that killed Hrath are after Hoole, and know where he is. To keep him safe, Grank brings him to Beyond the Beyond, a strange land of fiery volcanoes in a barren, icy landscape.(more)