But there are roughly two sorts of informed people, aren't there? People who start off right by observing the pitfalls and mistakes and going round them, and the people who fall into them and get out and know they're there because of that. They both come to the same conclusions but they don't have quite the same point of view.

In 1927 Margery Allingham married Carter who collaborated with her and designed the jackets for many of her books. Bibliography
Blackkerchief Dick (1923)
The White Cottage Mystery (1928)
The Crime at Black Dudley (1929) (US title: The Black Dudley Murder)
Mystery Mile (1930)
Look to the Lady (1931) (US title: The Gyrth Chalice Mystery)
Police at the Funeral (1931)
Sweet Danger (1933) (US title: Kingdom of Death/The Fear Sign)
Death of a Ghost (1934)
Flowers for the Judge (1936) (US title: Legacy in Blood)
Mr. At first Margery Allingham had to continue writing short stories and journalism for magazines such as The Strand Magazine but as her Campion saga went on her following and her sales grew steadily.