* Kahdeksas ympyrä (1952)
* House of Cards (1957)
* High Tension (1958)
* Avain Nicholas Streetille (1959)
* The 13th Hour (1961)
* Stranger in My Grave (1962)
* Tigerin aika (1963)
* Talvi tämän kesän jälkeen (1964)
* 10th Circle (1965)
* The Vital Ingredient (1966)
* The Double Man (1968)
* Shadow of a Man (1969)
* The Third Face (1970)
* Star-Crossed (1971)
* Berliinin muistio (1973)
* The Big Splash (1975)
* The Dying Day (1976)
* Seitsemännen pimeyden yö (1977)
* The House of Cards (1981)
* Man on Fire (1983)
* Nostradamus Secret (1985)
* Scorpion (1987)
* Kobra (1988)
* Viper (1989)
* Juudaksen sopimus (1991)
* The Ravengar Files (1993)
* The Omega Conspiracy (1994)
* Tuomiopäivän pöytäkirja (1996)
* Luciferin liitto (1998)
* The Apocalypse Mandaat (2000)
* The Orion Deception (2002)
* Lasarusvektori (2004)
* The Prometheus Deception (2006)
* Ares-päätös (2008)
* The Atlantis Legacy (2010)
* The Eden Enigma (2012)
* Nooan direktiivi (2014)
* The Atlantis Betrayal (2016)
* The Eden Prophecy (2018)
Novellit:
* "Mies sinisessä naamiossa" (1951)
* "The House on the Hill" (1952)
* "Mies, joka käveli seinien läpi" (1953)
* "The Shadow Man" (1954)
* "Seitsemännen pimeyden yö" (1955)
* "The 13th Hour" (1956)
* "The Stranger in My Grave" (1957)
* "Tiikerin aika" (1958)
* "Avain Nicholas Streetille" (1959)
* "The Vital Ingredient" (1960)
* "The 10th Circle" (1961)
* "The Double Man" (1962)
* "Shadow of a Man" (1963)
* "Star-Crossed" (1964)
* "Berliinin muistio" (1965)
* "Man on Fire" (1966)
* "Nostradamus Secret" (1967)
* "The Judas Contract" (1968)
* "The Ravengar Files" (1969)
* "The Omega Conspiracy" (1970)
* "The Doomsday Protocol" (1971)
* "The Lucifer Covenant" (1972)
* "The Apocalypse Mandaat" (1973)
* "The Orion Deception" (1974)
* "Lazarus-vektori" (1975)
* "The Prometheus Deception" (1976)
* "Ares-päätös" (1977)
* "The Atlantis Legacy" (1978)
* "The Eden Enigma" (1979)
* "Nooan direktiivi" (1980)
* "The Atlantis Betrayal" (1981)
* "The Eden Prophecy" (1982)
Novellit:
* "Korttitalo" (1957)
* "High Tension" (1958)
* "Avain Nicholas Streetille" (1959)
* "The 13th Hour" (1961)
* "Stranger in My Grave" (1962)
* "Tigerin aika" (1963)
* "Talvi tämän kesän jälkeen" (1964)
* "The 10th Circle" (1965)
* "Berliinin muistio" (1973)
* "The Big Splash" (1975)
* "The Dying Day" (1976)
* "Korttitalo" (1981)
* "Man on Fire" (1983)
* "Nostradamus Secret" (1985)
* "Skorpioni" (1987)
* "Kobra" (1988)
* "Viper" (1989)
* "The Judas Contract" (1991)
* "The Ravengar Files" (1993)
* "The Omega Conspiracy" (1994)
* "The Doomsday Protocol" (1996)
* "The Lucifer Covenant" (1998)
* "The Apocalypse Mandaat" (2000)
* "The Orion Deception" (2002)
* "Lazarus-vektori" (2004)
* "The Prometheus Deception" (2006)
* "Ares-päätös" (2008)
* "The Atlantis Legacy" (2010)
* "The Eden Enigma" (2012)
* "Nooan direktiivi" (2014)
* "The Atlantis Betrayal" (2016)
* "The Eden Prophecy" (2018)