But although I waited in that street two long, never-ending days, I saw no tall, fair man enter there.

That some serious misfortune had occurred to Philip Reilly I felt convinced, but of what character I dreaded to contemplate. Twelve days had gone by, and not a word had been received from him by any one.

The mysteries of London are many—and profound.

CHAPTER XIX
THE LADY FROM BAYSWATER

On the second evening of my vigil in Sterndale Road my watchfulness was rewarded by seeing a neat and familiar figure pass up the street and enter the little newsagent’s.

It needed no second glance to tell me that the visitor to the shop was the mysterious girl who called me on that memorable night, from the dispensary at Walworth—Miss Bristowe.

Fortunately she had not noticed my presence. Therefore I at once concealed myself up a side passage and waiting till she emerged with a letter in her hand—the one I had addressed to Purvis, I expect—I started to follow her. Every moment I feared lest she might look round and discover me, for in those back streets of Hammersmith there is not much traffic. But I was determined on this occasion to follow her to her home or to the hiding-place of Purvis.

Turning down Brook Green Road, she walked as far as the Hammersmith Station of the Underground Railway, where she bought a ticket for Notting Hill and entered the next train going west. On alighting she traversed hurriedly the Lancaster Road, for it had begun to rain and she was without an umbrella, and, turning at last into the Cornwall Road, ascended the front steps of one of the dark, smoke-blackened houses in that thoroughfare, not far from the corner of Portobello Road. She rang, the door was immediately opened by a servant, and she disappeared within.

Then, after a brief wait, I passed the house near enough to note that its number was 120. She went in at half-past seven, and, although I waited in the rain until half an hour before midnight, she did not come forth again. I therefore concluded that I had at last gained knowledge of her place of abode.

I wondered whether Purvis lived in that same house. She had called for his letters at Sterndale Road, and would probably hand them to him at once. Therefore, after long reflection, I came to the conclusion that he must live at that address.