| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Code Name Cassandra | Paperback | 978-0-7434-5042-3 | 2002 |
| Darkest Hour | " | 978-0-7434-3053-1 | 2002 |
| Darkest Hour | Mass Market Paperback | 978-0-671-78847-6 | 2001 |
| Ninth Key | Paperback | 978-0-7434-3051-7 | 2002 |
| Ninth Key | Mass Market Paperback | 978-0-671-78798-1 | 2001 |
| Reunion | Paperback | 978-0-7434-3052-4 | 2002 |
| Reunion | Mass Market Paperback | 978-0-671-78812-4 | 2001 |
| Safe House | Paperback | 978-0-7434-5043-0 | 2003 |
| Sanctuary | " | 978-0-7434-5044-7 | 2003 |
| Sanctuary | Library Binding | 978-0-613-74158-3 | 2002 |
| Sanctuary | Mass Market Paperback | 978-0-7434-1142-4 | 2002 |
| Shadowland | Paperback | 978-0-7434-3050-0 | 2002 |
| Shadowland | Mass Market Paperback | 978-0-671-78791-2 | 2000 |
| When Lightning Strikes | Paperback | 978-0-7434-5041-6 | 2002 |