Covert-One is a series thriller novels commenced by Robert Ludlum, and continued by several authors after his death in 2001.
• The Hades Factor (with Gayle Lynds) (2000)
• The Cassandra Compact (with Philip Shelby) (2001)
• The Paris Option (with Gayle Lynds) (2002)
• The Altman Code (with Gayle Lynds) (2003)
• The Lazarus Vendetta (with Patrick Larkin) (2004)
• The Moscow Vector (with Patrick Larkin) (2005)
• The Arctic Event (by James H. Cobb) (2007)
• The Ares Decision (by Kyle Mills) (2011)
• The Janus Reprisal (by Jamie Freveletti) (2012)
• The Utopia Experiment (by Kyle Mills) (2013)
• The Geneva Strategy (by Jamie Freveletti) (2015)
• The Patriot Attack (by Kyle Mills) (2015)
