Guardians of Ga'hoole #3: The Rescue, written by Kathryn Lasky, is the third novel in the series entitled Guardians of Ga'hoole.
Now that Soren has been reunited with his sister, [[Eglantine], he must face his next challenge: making sense of the mysterious disappearance of his mentor, Ezylryb. When Soren discovers that Ezylryb is in danger, he and his friends Gylfie, Twilight, and Digger devise a plan to save the beloved teacher with Eglantine, Otulissa, Ruby, and Martin. In this process, Soren must fight a ferocious foe who wears a terrifying metal beak, sharpened for battle. It is up to Soren to discover the shocking true identity of his horrific opponent: his own brother Kludd.