It has been said that the 1920s and 1930s were the Golden Age of the detective story. Tory Historian has always found that rather hard to accept as all too many of those novels are either completely unreadable or utterly preposterous, such as the adventures of Colonel Gore.
Overwork means undue congestion of certain lobes of the brain. In order to draw the blood from these lobes, other contiguous lobes must be stimulated. A week in the country merely means that you brood on your work. Detective novels act like iodine on a gum and serve as counter-irritant.Tory Historian has to admit that the pseudo-medical explanation is not very impressive but any excuse to read detective stories is a good thing.