Paolini, Christopher Inheritance, or, the vault of souls / Vol. IV Christopher Paolini - New York : Alfred A. Knopf, c2011. - Volume IV ; 24 cm. - The Inheritance cycle ; bk. 4 . ISBN: 9780375856112 LCCN: Subjects--Topical Terms: FantasyDragonsFiction LC Class. No.: PZ7 / .P19535 2011