| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Caged Hearts | 6303451683 (6303451683) | 1998 | Frank Kia · Helge Gerull · Henri Charr · Jess Mancilla |
| Under Lock and Key | 6303368808 (6303368808) | 1995 | Frank Kia · Henri Charr · Jess Mancilla · John B. Pfeifer |