The exciting new murder mystery by Pulitzer Prize nominee Karen Hall: DCI Maizie Crenshaw.- The Knows Murders. A grabbing combining of cozy-gritty for fans of the genre and a must read. Detective Chief Inspector Maizie Crenshaw has just retired - more or less. While Greater Manchester is no longer her beat, murder in Upper Knows and Lower Knows requires all of her skills, savvy and wits even out on the supposedly peaceful countryside. Perhaps especially out in the countryside where everything is unfamiliar including the people which put her up against it. Clever and grabbing. In the original British text,.