Adrian Mulliner, nephew of the sage of Angler's Rest, dyspeptic detective in love with Lady Millicent Shipton-Bellinger in The Smile That Wins, was at Oxford; member of Widgery & Boon, Investigators, of Albemarle St. Dark and thin, with an air of inscrutable melancholy due to his dyspepsia. Concludes in From a Detective's Notebook that Sherlock Holmes is also Professor Moriarty.

• The Smile That Wins