| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Blind Instinct | 978-0-515-13150-5 (0-515-13150-4) | 2001 | Robert W. Walker |
| Fatal Instinct | 978-1-55773-950-6 (1-55773-950-1) | 1993 | |
R. Walker · R. Wayne · Robert W. · Robert W. Walker · Robert Walker · Robert Wayne · W.W. · W. Walker · Wayne Walker