"Yes," he said, as he raised the wine cup slowly to his lips, "I can remember pretty well----" II THE MIRROR OF THE MAGISTRATE JAMES BAGSHAW and Wilfred Underhill were old friends, and were fond of rambling through the streets at night, talking interminably as they turned corner after corner in the silent and seemingly lifeless labyrinth of the large suburb in which they lived. The former, a big, dark, good-humoured man with a strip of black moustache, was a professional police detective; the latter, a sharp-faced, sensitive-looking gentleman with light hair, was an amateur interested in detection. It will come as a shock to the readers of the best scientific romance to learn that it was the policeman who was talking and the amateur who was listening, even with a certain respect. "Ours is the only trade," said Bagshaw, "in which the professional is always supposed to be wrong. After all, people don't write stories in which hairdressers can't cut hair and have to be helped by a customer; or in which a cabman can't drive a cab until his fare explains to him the philosophy of cab-driving. For all that, I'd never deny that we often tend to get into a rut: or, in other words, have the disadvantages of going by a rule. Where the romancers are wrong is, that they don't allow us even the advantages of going by a rule." "Surely," said Underhill, "Sherlock Holmes would say that he went by a logical rule." "He may be right," answered the other; "but I mean a collective rule. It's like the staff work of an army. We pool our information." "And you don't think detective stories allow for that?" asked his friend. "Well, let's take any imaginary case of Sherlock Holmes, and Lestrade, the official detective. Sherlock Holmes, let us say, can guess that a total stranger crossing the street is a foreigner, merely because he seems to look for the traffic to go to the right instead of the left. I'm quite ready to admit Holmes might guess that. I'm quite sure Lestrade wouldn't guess anything of the kind. But what they leave out is the fact that the policeman, who couldn't guess, might very probably know. Lestrade might know the man was a foreigner merely because his department has to keep an eye on all foreigners; some would say on all natives, too. As a policeman I'm glad the police know so much; for every man wants to do his own job well. But as a citizen, I sometimes wonder whether they don't know too much." "You don't seriously mean to say," cried Underhill incredulously, "that you know anything about strange people in a strange street. That if a man walked out of that house over there, you would know anything about him?" "I should if he was the householder," answered Bagshaw. "That house is rented by a literary man of Anglo-Roumanian extraction, who generally lives in Paris, but is over here in connexion with some poetical play of his. His name's Osric Orm, one of the new poets, and pretty steep to read, I believe."