| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Ultimate Alien | 978-0-440-50631-7 (0-440-50631-X) | 1995 | Byron Preiss · John (Editor) Betancourt |
| The Ultimate Dragon | 978-0-440-50630-0 (0-440-50630-1) | 1995 | Byron Preiss · John (Editor) Betancourt |