Vatican Secret Archive

1 The Vivaldi Cipher (2021)
2 The Opus Dictum (2021)
3 The Petrus Prophecy (2022) (with Ronald L Moore)
4 The Avignon Affair (2022) (with Ronald L Moore)
5 The Jerusalem Scrolls (2023)
6 The Galileo Gambit (2023) (with Ronald L Moore)
7 The Confessions of Pope Joan (2023)
8 The Celestial Guardian (2024)
9 The Apostle Conspiracy (2024)
10 The Hildegard Seeds (2025)
11 The Voynich Codex (2025)
12 The Medici Heresy (2025)
13 The Borgia Vigil (2026)