A Piece of Resistance (1970)
APA: Never Surrender (2004)

Last Post for a Partisan (1971)
APA: The Sleeper (2005)

The Judas Mandate (1971)
APA: The Last Refuge (2005)

The Eisenhower Deception (1981)
APA: The Winter Touch (1981)
APA: The Presidential Affair (2007)

The Russian Enigma (1982)
APA [?]: Pandora’s Box (2008)

Hostile Intent (1993)

A Killing in Moscow (1994)

Death Throes (1995)

A Lethal Involvement (1996)

Warning Shot (1997)

Blood Money (1998)

Dead Reckoning (1999)

The Honey Trap (2000)

One Man Running (2001)

Cry Havoc (2003)

Assassination Day (2004)

The Renegades (2005)

Seven Days to a Killing (1973)
APA: The Black Windmill (1974)
APA: A Spy’s Ransom (2003)

The Bormann Brief (1974)
APA: The October Plot (1974)
APA: A Dying Fall (2004)

Skirmish (1975)

State Visit (1976)

The Mills Bomb (1978)
APA: The Loner (2006)

Backfire (1979)

A Falcon for the Hawks (1982)

A Conflict of Interests (1983)

Troika (1984)

A Different Drummer (1985)

The Picture of the Year (1987)

Missing from the Record (1988)
APA: Gone Mi$$ing (1988)

Death of a Sahib (1989)

In the Red (1990)

Last Act (1991)

A Double Deception (1994)

The Rommel Plot (1977)

The Clauberg Trigger (1978)

China Gold (1982)
APA: Operation Sovereign¹ (1998)

Escape to Athena (1979)

Double Griffin (1981)
APA: The Skorzeny Project¹ (1998)