The Alexandria Link: A Novel

The Venetian Betrayal: A Novel

The Charlemagne Pursuit: A Novel

The Paris Vendetta: A Novel

The Emperor's Tomb

The Lincoln Myth: A Novel

The Templar Legacy: A Novel

The Jefferson Key: A Novel

Sandstorm

Map of Bones: A Sigma Force Novel

The Doomsday Key: A Sigma Force Novel

The Eye of God: A Sigma Force Novel

The Blood Gospel: The Order of the Sanguines Series

Bloodline: A Sigma Force Novel

Innocent Blood: The Order of the Sanguines Series