2006 - The Valley of Secrets (Paperback) → Paperback, Hardcover, Audio Cassette, Audio CD ISBN-13: 9781416900153 ISBN-10: 1416900152 Genre: Children's Books 7 2005 - The Valley of Secrets (Hardcover) → Paperback, Hardcover, Audio Cassette, Audio CD ISBN-13: 9780689878626 ISBN-10: 0689878621 Genre: Children's Books 8 |