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.

The harvest festival -- Dumpy's dilemma -- Chimes in the mist -- Scholar or warrior? -- A wolf and a bear -- Namara howls -- I'm here! -- Astonishing visitors -- Tactics -- A dreadful mis-hatch! -- Stirrings in the Dragon Court -- "Glaux speed!" -- Proposal or experiment? -- A trace of doubt -- Splendid isolation, no more! -- To the northern kingdoms -- A surprise warrior -- A distracted owl -- High stakes -- Standoff at the Great Horns -- A mustering of troops -- A summit meeting -- At the Wolf's Fang -- An old friend -- The lure of the ember -- A Slink Melf swims on -- The second front -- The hot gates of the beyond -- The last glow.