Caligula (Roman Trilogy 1)
Claudius
The Doomsday Testament
Defender of Rome (Gaius Valerius Verrens 2)
Avenger of Rome (Gaius Valerius Verrens 3)
The Isis Covenant
Sword of Rome: Gaius Valerius Verrens 4
Hero of Rome: (Gaius Valerius Verrens 1)
The Excalibur Codex
Enemy of Rome (Gaius Valerius Verrens 5)