“Quite so, but the sequel was rather unusual.  I will tell you, however.  I left the house a little after eight o’clock this morning in the character of a groom out of work.  There is a wonderful sympathy and freemasonry among horsey men.  Be one of them, and you will know all that there is to know.  I soon found Briony Lodge.  It is a bijou villa, with a garden at the back, but built out in the front right up to the road, two stories.  Chubb lock to the door.  Large sitting room on the right side, well furnished, with long windows almost to the floor, and those preposterous English window fasteners which a child could open.  Behind there was nothing remarkable, save that the passage window could be reached from the top of the coach-house.  I walked round it and examined it closely from every point of view, but without noting anything else of interest.

“I then lounged down the street, and found, as I expected, that there was a mews in a lane which runs down by one wall of the garden.  I lent the hostlers a hand in rubbing down their horses, and I received in exchange twopence, a glass of half and half, two fills of shag tobacco, and as much information as I could desire about Miss Adler, to say nothing of half a dozen other people in the neighborhood, in whom I was not in the least interested, but whose biographies I was compelled to listen to.”

“And what of Irene Adler?” I asked.

“Oh, she has turned all the men’s heads down in that part.  She is the daintiest thing under a bonnet on this planet.  So say the Serpentine Mews, to a man.  She lives quietly, sings at concerts, drives out at five every day, and returns at seven sharp for dinner.  Seldom goes out at other times, except when she sings.  Has only one male visitor, but a good deal of him.  He is dark, handsome, and dashing; never calls less than once a day, and often twice.  He is a Mr. Godfrey Norton of the Inner Temple.  See the advantages of a cabman as a confidant.  They had driven him home a dozen times from Serpentine Mews, and knew all about him.  When I had listened to all that they had to tell, I began to walk up and down near Briony Lodge once more, and to think over my plan of campaign.

“This Godfrey Norton was evidently an important factor in the matter.  He was a lawyer.  That sounded ominous.  What was the relation between them, and what the object of his repeated visits?  Was she his client, his friend, or his mistress?  If the former, she had probably transferred the photograph to his keeping.  If the latter, it was less likely.  On the issue of this question depended whether I should continue my work at Briony Lodge, or turn my attention to the gentleman’s chambers in the Temple.  It was a delicate point, and it widened the field of my inquiry.  I fear that I bore you with these details, but I have to let you see my little difficulties, if you are to understand the situation.”

“I am following you closely,” I answered.