| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Destination Freedom a Time Travel Adventure Stage I Departure Instruction | 978-0-13-202219-4 (0-13-202219-2) | 1988 | |
| Destination Freedom: A Time-Travel Adventure, Stage II: Arrival Instruction | 978-0-13-202227-9 (0-13-202227-3) | 1989 | Ramtha · J. Z. Knight |