| title | ISBN-13 | year of publication |
|---|---|---|
| Bugs: A Hays McKay Mystery | 978-0-595-26755-2 | 2003 |
| The God and the Gold: A Hays McKay Adventure | 978-1-4620-0842-1 | 2011 |
| THEN NOW WHENEVER | 978-0-595-28399-6 | 2003 |
| The Sherlock Holmes Adventure | 978-0-595-31547-5 | 2004 |
| Twenty Six Days: A Mystery of Victorian England | 978-1-4697-8604-9 | 2012 |