Riordan, Rick Vespers rising Rick Riordan et at. - New York : Scholastic, 2008. - 174 p. ; 20 cm. - The 39 clues ; 11 . ISBN: 9780545290593 Subjects--Topical Terms: Mystery and detective stories.OrphansFamily secretsBrothers and sisters Dewey Class. No.: Fic. R5858v 2011 Bk.11