| title | ISBN-13 | year of publication |
|---|---|---|
| Big Bad Wolf: A Cos Commando Novel | 978-1-4404-7169-8 | 2008 |
| Facing Fear | 978-0-06-052339-8 | 2004 |
| Into Danger | 978-0-06-052338-1 | 2003 |
| Sleeping With the Agent | 978-0-06-059124-3 | 2006 |
| The Hunter | 978-0-06-059123-6 | 2005 |
| The Protector | 978-0-06-059110-6 | 2005 |
| Virtually Hers | 978-1-60504-798-0 | 2010 |
| Virtually Hers | 978-0-7783-2480-5 | 2008 |
| Virtually His | 978-0-7783-0218-6 | 2008 |
| Virtually His | 978-0-7783-2448-5 | 2007 |
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