Inevitably, there will be comparisons with Josephine Tey's The Daughter of Time , in which her sleuth simultaneously convalesces and cogitates upon Richard III, accused of the murder of his two nephews. Dexter's tale is the better of the two. The interior narrative, that of a fetching young woman who meets death during a night-shrouded canal voyage, is placed in a contemporary story in which Morse engages in marvelous repartee with his loyal Sergeant Lewis, with a winsome female librarian and with others who aid him in researching the crime. A surprising and inspired solution concludes a jolly good read that juxtaposes past and present Oxford with imagination and finesse.