Detective Orloff
1. Still Waters Run Deadly (1987)
2. Bloody Festival (1991)

Perilous Love (1966) (with Mary Turner (Isobel Lambot))
Dangerous Refuge (1966)
Taste of Murder (1966)
Deadly Return (1966)
Shroud Of Canvas (1967)
Danger Merchant (1968)
The Queen Dies First (1968)
Killer's Laughter (1968)
Let the Witness Die (1969)
Point of Death (1969)
Watcher on the Shore (1972)
Contract for Death (1972) (with Daniel Ingham (Isobel Lambot))
Come Back and Die (1972)
Grip of Fear (1974)
The Justice Hunt (1975) (with Mary Turner (Isobel Lambot))
So Bright a Lady (1977) (with Mary Turner (Isobel Lambot))
The Identity Trap (1978)
Blood Ties (1987)
Legami Di Sangue (1988)
Past Tense (1988)
Rooney's Gold (1991)
The Flower of Violence (1992)