Riordan, Rick The sword of summer / Rick Riordan. - New York : Disney-Hyperion, c2015. - ix, 503 p., various pages ; 19 cm. - Magnus Chase and the Gods of Asgard Series Book 1 . ISBN: 9781423163374 (pbk.) Subjects--Topical Terms: Norse mythology--FictionJuvenile fiction Index Terms--Genre/Form: FictionMythologyFantasyYoung adult Dewey Class. No.: 813.6