The Boxcar Children Set of 12 Paperbacks - Mystery Ranch, the Pilgrim Village Mystery, Benny Uncovers A Mystery, The Camp-out Mystery, The Mystery Girl, The Mystery of the Singing Ghost, The Pizza Mystery, The Mystery Horse, The Mystery of the Hidden Beach, The Chocolate Sundae Mystery, The Mystery of the Hot Air Balloon and The Mystery Bookstore

The Boxcar Children #004;019;027-028;031;033-034;041;046-048

Gertrude Chandler Warner