Book 1
Robert Ludlum's The Hades Factor
Robert Ludlum
Book 3
Robert Ludlum's The Paris Option
Robert Ludlum & Gayle Lynds
Book 4
Robert Ludlum's The Altman Code
Robert Ludlum & Gayle Lynds
Book 5
Robert Ludlum's The Lazarus Vendetta
Robert Ludlum & Patrick Larkin
Book 7
Robert Ludlum's The Arctic Event
James Cobb & Robert Ludlum
Book 9
Robert Ludlum's The Janus Reprisal
Jamie Freveletti & Robert Ludlum