Lasky, Kathryn The siege / by Kathryn Lasky - New York, N.Y. : Scholastic, 2004 - 203 p. : ill., maps - Guardians of Ga'Hoole ; bk. 4 . ISBN: 9780439405607 Subjects--Topical Terms: OWLS--FICTIONFANTASYCHILDREN'S LITERATURECHILDREN'S STORIES