By Whitechapel Station he discharged the cab, and, standing on the pavement, lighted a new cigarette from the glowing stump of the old one.  A fair amount of traffic passed along the Whitechapel Road, for the night was yet young; therefore Gianapolis attached no importance to the fact that almost at the moment when his own cab turned and was driven away, a second cab swung around the corner of Mount Street and disappeared.

But, could he have seen the big limousine drawn up to the pavement some fifty yards west of London Hospital, his reflections must have been terrible, indeed.

Fate willed that he should know nothing of this matter, and, his thoughts automatically reverting again to Helen Cumberly, he enjoyed that imaginary companionship throughout the remainder of his walk, which led him along Cambridge Road, and from thence, by a devious route, to the northern end of Globe Road.

It may be enlightening to leave Gianapolis for a moment and to return to Mount Street.

Helen Cumberly’s cabman, seeing the cab ahead pull up outside the railway station, turned around the nearest corner on the right (as has already appeared), and there stopped.  Helen, who also had observed the maneuver of the taxi ahead, hastily descended, and giving the man half-a-sovereign, said rapidly: 

“I must follow on foot now, I am afraid! but as I don’t know this district at all, could you bring the cab along without attracting attention, and manage to keep me in sight?”

“I’ll try, miss,” replied the man, with alacrity; “but it won’t be an easy job.”

“Do your best,” cried Helen, and ran off rapidly around the corner, and into Whitechapel Road.

She was just in time to see Gianapolis throw away the stump of his first cigarette and stroll off, smoking a second.  She rejoiced that she was inconspicuously dressed, but, simple as was her attire, it did not fail to attract coarse comment from some whom she jostled on her way.  She ignored all this, however, and, at a discreet distance followed the Greek, never losing sight of him for more than a moment.

When, leaving Cambridge Road—­a considerable thoroughfare—­he plunged into a turning, crooked and uninviting, which ran roughly at right angles with the former, she hesitated, but only for an instant.  Not another pedestrian was visible in the street, which was very narrow and ill-lighted, but she plainly saw Gianapolis passing under a street-lamp some thirty yards along.  Glancing back in quest of the cabman, but failing to perceive him, she resumed the pursuit.

She was nearly come to the end of the street (Gianapolis already had disappeared into an even narrower turning on the left) when a bright light suddenly swept from behind and cast her shadow far out in front of her upon the muddy road.  She heard the faint thudding of a motor, but did not look back, for she was confident that this was the taxi-man following.  She crept to the corner and peered around it; Gianapolis had disappeared.