Lastly, supposing one man wished to dog another through London, what better means could he adopt than to turn cabdriver.

All these considerations led me to the irresistible conclusion that Jefferson Hope was to be found among the jarveys of the Metropolis.
"If he had been one there was no reason to believe that he had ceased to be.

On the contrary, from his point of view, any sudden change would be likely to draw attention to himself.

He would, probably, for a time at least, continue to perform his duties.

There was no reason to suppose that he was going under an assumed name.