Set in the 1920s Daisy Dalrymple, who is engaged to Scotland Yard Inspector Alec Fletcher, is asked by her brother-in-law to discreetly investigate a series of poisoned pen letters that many of the local villagers including himself have been receiving. She travels to Kent with her soon to be stepdaughter to enjoy the countryside and find out who the writer is. Unfortunately before she can solve the mystery the brother of the local vicar is murdered. There are plenty of suspects. Daisy is a person in whom people easily confide in and the information she gains proves invaluable to the local police and her fiancé in solving the murder.
The novel has a good sense of period and the characters particularly the children are well drawn. It is an easy but good read and Daisy makes a very endearing heroine.