The reader is introduced to Soren, a barn owl and the centerpiece of the series. When Soren is pushed from his family's nest by his older brother, he is rescued from certain death on the forest floor by agents from a mysterious school for orphaned owls, St. Aggie's. When Soren arrives at St. Aggie's, he suspects there is more to the school than meets the eye. He and his new friend, the clever and scrappy Gylfie, find out that St. Aggie's is actually...

"Even though Soren was kidnapped and taken to the St. Aegolius School for Orphaned Owls, he has longed to see his sister, Eglantine, again. Now Eglantine is back in Soren's life, but she's been through an ordeal too terrible for words. And Ezylryb, Soren's mentor, has disappeared ... In order to rescue him, Soren must embark upon a perilous quest."--P. [4] of cover.

"Soren's sister, Eglantine, si falling under the spell of a strange nightly dream. Then, just as Soren notices her trancelike state, Eglantine disappears, and the dreams become a deadly waking nightmare that puts the Great Tree of Ga'Hoole in terrible danger."--P. [4] of cover.