| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Defenders of Christendom | 978-0-9796301-3-2 (0-9796301-3-4) | 2014 |
| El Cid: God's Own Champion | 978-0-9796301-0-1 (0-9796301-0-X) | 2007 |
| Saint Fernando III: A Kingdom for Christ | 978-0-9796301-1-8 (0-9796301-1-8) | 2011 |