The third book in the GUARDIANS OF GA'HOOLE series, a classic hero mythology, chronicles Soren's quest for his missing mentor, Ezylryb, and battle against his evil brother, Kludd.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. In this process, Soren must fight a ferocious foe who wears a terrifying metal beak, sharpened for battle. It's not until the confrontation is over that Soren discovers the true identity of his opponent. The metal beaked warrior is Soren's evil brother, Kludd.

GA'HOOLE的守护者系列的第三本书，是一个经典的英雄神话，记录了索伦对他失踪的导师Ezylryb的追求，以及与他邪恶的哥哥Kludd的战斗。现在，索伦已经与他的妹妹Eglantine团聚，他必须面对他的下一个挑战：使他的导师Ezylryb的神秘失踪的意义。当索伦发现Ezylryb处于危险之中时，他和他的朋友Gylfie、Twilight和Digger制定了一个计划来拯救这位敬爱的老师。在这个过程中，索伦必须与一个凶猛的敌人战斗，他戴着一个可怕的金属喙，为战斗而磨砺。直到对抗结束，索伦才发现了对手的真实身份。这个金属喙的战士是索伦的邪恶哥哥克鲁德。