The character first appeared in The Royal Magazine in 1901 in a series of six "Mysteries of London". The following year he returned in seven "Mysteries of Great Cities" set in large provincial centers of the British Isles. The stories are told by an unnamed lady journalist who reports the conversation of the 'man in the corner' who sits at the same table in the A.B.C. teashop. For the book, twelve were rewritten in the third person, with the lady...