With this kit of books, volumes 28 - 40 of the Boxcar Children, you can again follow all the adventures and mysteries of the four children who lived in a railroad car until going to stay with their grandfather by author Gertrude Chandler Warner. Book titles: #28 Mystery Girl, #29 Mystery Cruise, #30 Disappearing Friend Mystery, #31 Mystery of the Singing Ghost, #32 Mystery In the Snow, #33 Pizza Mystery, #34 Mystery Horse, #35 Mystery at the Dog Show, #36 Castle Mystery, #37 Mystery of the Lost Village, #38 Mystery of the Purple Pool, #39 Ghost Ship Mystery, #40 Canoe Trip Mystery.