2007 - Mystery at the Washington Monument [Capital Mysteries, Bk 8] (Paperback) → Hardcover ISBN-13: 9780375839702 ISBN-10: 0375839704 Genre: Children's Books ? 2004 - A Spy in the White House [Capital Mysteries, Bk 4] (Paperback) → Paperback, Hardcover ISBN-13: 9780439684507 ISBN-10: 0439684501 Genre: Children's Books 3 2003 - The Skeleton in the Smithsonian [Capital Mysteries, Bk 3] (Paperback) → Paperback, Hardcover ISBN-13: 9780439684484 ISBN-10: 043968448X Genre: Children's Books 4 |