Sogensha
- 蜘蛛の巣〈下〉 蜘蛛の巣〈上〉 (The Spider’s Web) November 2006*
- 幼き子らよ、我がもとへ〈上〉 幼き子らよ、我がもとへ〈下〉 (Suffer Little Children) September 2007*
- 修道女フィデルマの叡智 (“The Poison Chalice” and other stories) 2009
- (“The Poison Chalice,” “At the Tent of Holofernes,” “Our Lady of Death,” “The High King’s Sword,” “A Scream from the Sepulchre”)
- 修道女フィデルマの洞察 (“Hemlock at Vespers” and other stories) 2010
- (“Invitation to a Poisoning,” “Murder in Repose,” “The Horse that Died for Shame,” “Murder By Miracle,” “Hemlock At Vespers”)
- 蛇、もっとも禍し〈上〉 蛇、もっとも禍し〈下〉 (The Subtle Serpent) November 2009*
- 死をもちて赦されん (Absolution By Murder) January 2011
- サクソンの司教冠 (Shroud for the Archbishop) March 2012
- 修道女フィデルマの探求 (“A Canticle for Wulfstan” and other stories) 2012
- (“Holy Blood,” “Tarnished Halo,” “Abbey Sinister,” “Those That Trespass,” “A Canticle for Wulfstan”)
- 翳深き谷〈下〉 翳深き谷〈上〉 (The Valley of the Shadow) December 2013*
- 消えた修道士〈上〉 消えた修道士〈下〉 (The Monk Who Vanished) November 2015*
- 修道女フィデルマの挑戦 (“Whispers of the Dead” and other stories) 2017
- (“The Comb Bag,” “The Blemish,” “Whispers of the Dead,” “The Banshee,” “The Lost Eagle,” “Dark Moon Rising”)
- 憐れみをなす者〈上〉 憐れみをなす者〈下〉 (Act of Mercy) February 2021*
- 修道女フィデルマの采配 (“The Heir Apparent” and other stories) 2022
- (“The Astrologer Who Predicted His Own Murder,” “Who Stole the Fish?,” “The Fosterer,” “Cry ‘Wolf’!,” “The Heir Apparent”)
- 昏き聖母〈上〉 昏き聖母〈下〉 (Our Lady of Darknesss) March 10, 2023*
- 風に散る煙〈上〉風に散る煙〈下〉(Smoke in the Wind) July 19, 2024*
- Forthcoming
- (“Corpse on a Holy Day” and other stories) 2025
- (“Corpse on a Holy Day,” “Like a Dog Returning,” “Scattered Thorns,” “Gold at Night,” “Death of an Icon”)
- (“Corpse on a Holy Day” and other stories) 2025
* Depending on the length of the translated book, the publisher often issues a title in a 2-volume set