Covert Warriors
William E. Butterworth IV & W.E.B. Griffin
The Presidential Agent (7)
By Order of the President
W.E.B. Griffin
The Presidential Agent (1)
Impulse
Ellen Hopkins
Impulse (1)
Marauder
Clive Cussler
Oregon Files (15)
The Assassin
Isaac Bell (8)
The Saboteurs
Isaac Bell (12)