Berkley · Da Capo Lifelong Books
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Feuer am Himmel | 978-3-930219-10-0 (3-930219-10-7) | 1996 | ||
| Fire in the Sky | 978-1-56924-710-5 (1-56924-710-2) | 1997 | Walton | |
| The Walton Experience | 978-0-425-03675-4 (0-425-03675-8) | 1978 | ||