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)