Books published in order for the Roma Sub Rosa Books
| Roman Blood | (1990) |
| Arms of Nemesis | (1992) |
| Catilina’s Riddle | (1993) |
| The Venus Throw | (1995) |
| A Murder on the Appian Way | (1996) |
| The House of the Vestals | (1997) |
| Rubicon | (1999) |
| Last Seen in Massilia | (2000) |
| A Mist of Prophecies | (2002) |
| The Judgement of Caesar | (2004) |
| A Gladiator Dies Only Once | (2005) |
| The Triumph of Caesar | (2008) |
| The Throne of Caesar | (2018) |
Publication Order of Rome Books
Roma (2007)
Empire (2010)
Publication Order of Ancient World Books
| The Seven Wonde |