The Chalon heads

"David Brock and Kathy Kolla are summoned to Cabot's, a venerable dealer in rare stamps on the Strand. At first, they expect a simple case of theft and a pleasant digression from the usual sort of murderous wrongding they encounter in the Serious Crime Branch of Scotland Yard. But the case they confront is twistier and far more unsettling than they could have imagined. An unsavory figure from Broc...