The River of Wind

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 five owl kingdoms — as has been thought since
time immemorial — but six. 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.