Chief Inspector Flagg
1. Murder Comes to Rothesay (1946)
2. The League of Nameless Men (1948)
3. Master of the Dark (1948)
4. The Castle of Sin (1949)
5. The Clue of the Purple Asters (1949)
6. The Circle of Dust (1950)
7. The Waters of Sadness (1950)
8. Exit Mr. Shane (1951)
9. The Grey Ghost (1951)
10. The Rattler (1952)
11. The Second Mrs. Locke (1952)
12. Salute Inspector Flagg (1953)
13. Case for Inspector Flagg (1954)
14. Inspector Flagg and the Scarlet Skeleton (1955)
15. Again Inspector Flagg (1956)
16. Presenting Inspector Flagg (1957)
17. Case 29 (1958)
18. Enter Superintendent Flagg (1959)
19. Score for Superintendent Flagg (1960)
20. Problem for Superintendent Flagg (1961)
21. The Brothers of Benevolence (1962)
22. The Council of the Rat (1963)
23. Blue Mask (1964)
24. Grey Face (1965)
25. Blackfingers (1966)
26. The Room in Quiver Court (1967)
27. Call for Superintendent Flagg (1968)
28. The Grafter (1970)
29. The Hatchet Man (1971)
30. The Enforcer (1973)
31. Killer's Rope (1974)
32. Quest for Superintendent Flagg (1975)

Ludovic Saxon (The Picaroon)
1. Enter the Picaroon (1954)
2. The Avenging Picaroon (1955)
3. Beware! The Picaroon (1956)
4. Meet the Picaroon (1957)
5. The Engaging Picaroon (1958)
6. The Enterprising Picaroon (1959)
7. Salute the Picaroon (1960)
8. The Picaroon Goes West (1962)
9. Prey for the Picaroon (1963)
10. Challenge for the Picaroon (1964)
11. The Benevolent Picaroon (1965)
12. Plunder for the Picaroon (1966)
13. The Audacious Picaroon (1967)
14. The Elusive Picaroon (1968)
15. Night of the Picaroon (1969)
16. The Picaroon Collects (1970)
17. Quest for the Picaroon (1970)
18. Profit for the Picaroon (1972)
19. Picaroon Laughs Last (1973)
20. Action for the Picaroon (1975)
21. The Picaroon Gets the Run Around (1976)