| title | media type | ISBN-13 | year of publica- tion |
|---|---|---|---|
| Betsy and the Emperor | Mass Market Paperback | 978-1-4169-1336-8 | 2006 |
| Betsy and the Emperor | Hardcover | 978-0-689-85880-2 | 2004 |
| Black Powder | " | 978-0-689-86876-4 | 2005 |
| Mr. Lincoln's Boys: Being the Mostly True Adventures of Abraham Lincoln's Trouble-Making Sons, Tad and Willie | " | 978-0-670-06169-3 | 2008 |
| The Curse of the Romanovs | " | 978-1-4169-0208-9 | 2007 |