“Here you are, Sowerby!” cried Dunbar. “We are moving at last! This is the address of the late Mrs. Vernon's maid. See her; feel your ground, carefully, of course; get to know what clothes Mrs. Vernon took with her on her periodical visits to Scotland.”
“What clothes?”
“That's the idea; it is important. I don't think the girl was in her mistress's confidence, but I leave it to you to find out. If circumstances point to my surmise being inaccurate—you know how to act.”
“Just let me glance over your notes, bearing on the matter,” said Sowerby, “and I'll be off.”
Dunbar handed him the bulging notebook, and Sergeant Sowerby lowered his inadequate eyebrows, thoughtfully, whilst he scanned the evidence of Mr. Debnam. Then, returning the book to his superior, and adjusting the peculiar bowler firmly upon his head, he set out.
Dunbar glanced through some papers—apparently reports—which lay upon the table, penciled comments upon two of them, and then, consulting his notebook once more in order to refresh his memory, started off for Forth Street, Brixton.
Forth Street, Brixton, is a depressing thoroughfare. It contains small, cheap flats, and a number of frowsy looking houses which give one the impression of having run to seed. A hostelry of sad aspect occupies a commanding position midway along the street, but inspires the traveler not with cheer, but with lugubrious reflections upon the horrors of inebriety. The odors, unpleasantly mingled, of fried bacon and paraffin oil, are wafted to the wayfarer from the porches of these family residences.
Number 36 proved to be such a villa, and Inspector Dunbar contemplated it from a distance, thoughtfully. As he stood by the door of the public house, gazing across the street, a tired looking woman, lean and anxious-eyed, a poor, dried up bean-pod of a woman, appeared from the door of number 36, carrying a basket. She walked along in the direction of the neighboring highroad, and Dunbar casually followed her.
For some ten minutes he studied her activities, noting that she went from shop to shop until her basket was laden with provisions of all sorts. When she entered a wine-and-spirit merchant's, the detective entered close behind her, for the place was also a post-office. Whilst he purchased a penny stamp and fumbled in his pocket for an imaginary letter, he observed, with interest, that the woman had purchased, and was loading into the hospitable basket, a bottle of whisky, a bottle of rum, and a bottle of gin.
He left the shop ahead of her, sure, now, of his ground, always provided that the woman proved to be Mrs. Brian. Dunbar walked along Forth Street slowly enough to enable the woman to overtake him. At the door of number 36, he glanced up at the number, questioningly, and turned in the gate as she was about to enter.