The old lady had entered there in secret, without a doubt; otherwise she would have driven up to the door instead of alighting at the corner of Southampton Row.

I passed by on the opposite side, and as there was a street-lamp quite near was enabled to examine it fairly well, even though darkness had now set in.

All the blinds were drawn, and the inside shutters of the basement were closely barred. There was no light in any part, nor any sign of life within. In fact, the state of the windows and door-steps would lead to a conclusion that the old place was tenantless, for the exterior possessed a distinct air of neglect. Other houses in the row were of stereotyped exactness, but all more or less smarter, with steps hearthstoned and lights showing in the windows here and there. The one into which the old woman had so quickly disappeared was, however, grim, silent, forbidding.

As I strolled to the corner of Theobald’s Road I wondered what next I should do. I wanted to secure possession of the book, but without litigation, and, if possible, in secret. Yet it was a very difficult matter, as Hammond had pointed out.

Rain commenced to fall, and after my long journey from the Mediterranean I felt cold and deadbeat. Therefore, my eyes catching sight of a glaring public-house nearly opposite, I crossed and obtained some brandy and the loan of the London Directory.

After some little search I therein found the name of the occupier of the dingy old place, as follows: “106, Gardiner, Margaret.”

London’s mysteries are many and inscrutable. Surely here was a strange and inexplicable one. Why, indeed, should a mere old book of no value save to a collector be stolen from me in the far-off South and spirited away at express speed across the Continent to that dark, grimy, unlit place? There was some deep, direct motive in it all, of course; but what it was I could not conceive—except that the suspicion was strong upon me that, written within The Closed Book, was some remarkable and highly profitable secret, as indeed the writer himself alleged.

Again I strolled up Harpur Street past the silent house, keenly examining its every detail.

I noticed, to my surprise, that during my brief absence the Venetian blind of one of the first-floor windows had been drawn up half-way, and that on a table quite close to it stood a small stuffed animal—a tiny bear cub I made it out to be. There was a feeble light within, as though the big room was lighted only by a single candle, and it none of the brightest.

At the end of the street I crossed and returned past the house, walking on the opposite side of the way and re-examining the windows.