A great battle is on the horizon and drawing near. In preparation, Soren and his band must fly to the mysterious Norther Kingdoms to find allies and study the art of war. Meanwhile, St. Aggie's has fallen to the Pure Ones. If they are not stopped, they will launch another attack against the great tree. And without allies from the north, Ga'Hoole will surely fall. Soren's mission must succeed. And the final battle must be won. The coming conflagration will demand wisdom, bravery, and sacrifice from all the owls of the great tree, and from Soren and the band, nothing less than heroism.
Book six of an eight book series about the Owl Gaurdians of GaHoole. Although fiction there is a great deal of information about different kinds of owls. The author has a great imagination! Suitable for Young Adult Readers.