“…rather than a locked-room mystery in which the murder is an impossible crime, the detective is in (and becomes) the locked room, using cerebral means to reason his way into a solution to a genuine historical conundrum”
“A Mystery Novel Like No Other Before” – @sarahweinman on the fiction of Josephine Tey
https://lithub.com/a-mystery-novel-like-no-other-before-on-josephine-teys-the-daughter-of-time/
