The Sleuth of St James's Square

The head of the C. I. D. (Criminal Investigation Division) at Scotland Yard, Sir Henry Marquis is a man of some means and former head of the British Secret Service, who now holds several prestigious properties including his home is St James's Square... Marquis embraces the use of modern science to back up hard work and good police intuition, as he and his officers investigate the most complex of crimes.... A delightful set of of mysteries from an often overlooked master author of the Golden Age of detective fiction.