Slowly, inexorably, the striga, a mysterious blue owl from the middle kingdoms, gains control over Young Coryn's mind. An then the unthinkable happens. The band is banished from the great ga'hoole tree. The striga instit...Slowly, inexorably, the striga, a mysterious blue owl from the middle kingdoms, gains control over Young Coryn's mind. An then the unthinkable happens. The band is banished from the great ga'hoole tree. The striga institutes a harsh new regime that will not stop until learning itself-the very foundation of the tree-becomes suspect and books are consigned to flame.