| 0679824111 |
Magic Tree House #01
| Mary Pope Osborne | Random House | SER-MTH |
| 0375802967 |
Magic Tree House #01 - Research Guide
| Mary Pope Osborne, Will Osborne | Random House | SER-MTH |
| 0375802983 |
Magic Tree House #03 - Research Guide
| Mary Pope Osborne, Sal Murdocca | Random House | SER-MTH |
| 037581356X |
Magic Tree House #08 - Research Guide
| Will Osborne & Mary Pope Osborne | Random House | SER-MTH |
| 0545299489 |
Magic Tree House #44 (Merli...- Fact Tracker
| Mary Pope Osborne & Natalie Pope Boyce | Scholastic Inc. | SER-MTH |