365 Poems in 365 Days: Tips From Detective Novels

I was reading a detective novel by Georgette Heyer
In  which the police inspector complained about writers of thrillers
Who had informed criminals of the importance of fingerprints
So that premeditated murderers have wiped them off ever since



Number 170. This from Envious Casca in which she names and describes a tool for turning keys from the opposite side of a door.