Roma sub Rosa sereis
Roman Blood 1991
Arms of Nemesis 1992
Carilina's Riddle 1993
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 Judgment of Caesar 2004
A Gladiator Dies Only Once 2005
The Triumphof Caesar 2008
The Seven Wonders 2012
Raiders of the Nile 2014
Wrath of the Furies 2015

Roma series
Roma: The Novel of Ancient Rome 2007
Empire: The Novel of Imperial Rome 2010

Other novels
A Twist at the End 2000
Have You Seen Dawn? 2003
Future, Present, Past 2013
My Mother's Ghost 2013
A Bookish Bent 2013