Twelve more stories (see Tales of the Black Widowers, 1974) in what Asimov likes to consider his Chestertonian vein—the misplaced heirlooms, baffling safe combinations, and conditions of eccentric bequests chewed over at the monthly banquets of the Black Widowers club and invariably, imperturbably solved by ex officio member Henry the waiter. Asimov can hardly be said to have mastered this elegant puzzle-in-a-bottle form, but he obviously loves it.