| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Back To Before - Megamorphs #4 | 978-0-439-17307-0 (0-439-17307-8) | 2000 | K.A. Applegate |
| Ellimist Chronicles | 978-0-439-21798-9 (0-439-21798-9) | 2000 | |
| Solution | 978-0-590-76255-7 (0-590-76255-9) | 1998 | |