Books in Ancient
- Titans of War (The Egyptian Series)
- Warlock (The Egyptian Series Book 3)
- The Throne of Caesar: A Novel of Ancient Rome (Novels of Ancient Rome Book 16)
- The Triumph of Caesar: A Novel of Ancient Rome (The Roma Sub Rosa series Book 12)
- Last Seen in Massilia: A Novel of Ancient Rome (The Roma Sub Rosa series Book 8)
- A Murder on the Appian Way: A Novel of Ancient Rome (The Roma Sub Rosa series Book 5)
- The Venus Throw: A Mystery of Ancient Rome (The Roma Sub Rosa series Book 4)
- Catilina's Riddle: A Novel of Ancient Rome (The Roma Sub Rosa series Book 3)
- Roman Blood: A Novel of Ancient Rome (The Roma Sub Rosa series Book 1)
- The Seven Wonders: A Novel of the Ancient World (Novels of Ancient Rome Book 1)
- The Mammoth Hunters (with Bonus Content): Earth's Children, Book Three
- The Valley of Horses (with Bonus Content): Earth's Children, Book Two
- The Clan of the Cave Bear (with Bonus Content): Earth's Children, Book One
- Il confine del mondo: Aléxandros 3
- A Prince of Troy: The Troy Quartet, Book 1
- Boudica: Dreaming the Hound: Boudica, Book 3
- Las legiones malditas / Africanus:The Damned Legions (TRILOGÍA AFRICANUS) (Spanish Edition)
- Los asesinos del emperador: El ascenso de Trajano, el primer emperador hispano de la Historia
- Islands of Fire: The Sicily Chronicles, Book 1
- Das Buch Ana: Roman (German Edition)
- The Gates of Athens: Book One of Athenian
- The City of a Thousand Faces (Tumanbay)
- Imperator: Die Rom-Serie 16
- Vengeance of a Slave
- The Book of Science and Antiquities: A Novel
- Das Geheimnis der Essener: Ein historischer Kriminalroman aus dem antiken Rom
- The Conqueror (Constantine’s Empire Book #1) (Constantine's Empire)
- People of the Canyons: A Novel of North America's Forgotten Past
- Brides of Rome: A Novel of the Vestal Virgins (The Vesta Shadows Series Book 1)
- Callista
- The Grove of the Caesars: A Flavia Albia Novel
- Marius' Mules VII: The Great Revolt: Marius' Mules Book 7
- Africanus (Spanish Edition) (TRILOGÍA AFRICANUS)
- A Comedy of Terrors: Flavia Albia 9
- Tyrant: Tyrant, Book 1