| 1. Absolution by Murder | 1994 |
| 2. Shroud for the Archbishop | 1995 |
| 3. Suffer Little Children | 1995 |
| 4. The Subtle Serpent | 1996 |
| 5. The Spider’s Web | 1997 |
| 6. Valley of the Shadow | 1998 |
| 7. The Monk Who Vanished | 1999 |
| 8. Act of Mercy | 1999 |
| 9. Our Lady of Darkness | 2000 |
| 10. Smoke in the Wind | 2001 |
| 11. Haunted Abbot | 2002 |
| 12. Badger’s Moon | 2003 |
| 13. The Leper’s Bell | 2004 |
| 14. Master of Souls | 2005 |
| 15. A Prayer for the Damned | 2006 |
| 16. Dancing With Demons | 2007 |
| 17. The Council of the Cursed | 2008 |
| 18. The Dove of Death | 2009 |
| 19. The Chalice of Blood | 2010 |
| 20. Behold a Pale Horse (follows Shroud for the Archbishop chronologically) | 2011 |
| 21. The Seventh Trumpet | 2012 |
| 22. Atonement of Blood | 2013 |
| 23. The Devil’s Seal | 2014 |
| 24. The Spiteful Shadow (digital short story) | 2015 |
| 25. The Second Death | 2015 |
| 26. The Lair of the White Fox (e-novella, chronologically precedes titles in this list) | 2016 |
| 27. Penance of the Damned | 2016 |
| 28. Night of the Lightbringer | 2017 |
| 29. Bloodmoon | 2018 |
| 30. Blood in Eden | 2019 |
| 31. The Shapeshifter’s Lair | 2020 |
| Short Story Collection: Hemlock at Vespers | 2000 |
| Short Story Collection: Whispers of the Dead | 2004 |
| The House of Death | Expected summer of 2021 |