"You'll go up to Lancaster Gate tonight, Millwaters, and get a good look at that chap," Portlethwaite had told him. "Take plenty of money—I'll speak to the cashier about that—and be prepared for anything, even to following, if he bolts. Once you've seen him, you're not to lose sight of him; make sure of him last thing today and first thing tomorrow. Follow him wherever he goes, make a note of wherever he goes, and particularly of whoever he meets. And if there's need, ring me up here, and let's know what's happening, or if you want assistance."
There was no need for Millwaters to promise faithful compliance; Portlethwaite knew well enough that to put him on a trail was equivalent to putting a hound on the scent of a fox or a terrier to the run of a rat. And that evening, Millwaters, who had clever ways of his own, made himself well acquainted with the so-called Mr. Cave's appearance, and assured himself that his man had gone peacefully to rest at his hotel, and he had seen him again before breakfast next morning and had been in quiet and unobtrusive attendance upon him when, later, he visited Methley's office and subsequently walked away with Methley to the police-court. And Millwaters was in the police-court, meditatively sucking peppermint lozenges in a corner, when Mr. Cave was unexpectedly asked to give evidence; he was there, too, until Mr. Cave left the court.
Cave's remarkable story ran off Millwaters' mentality like raindrops off a steep roof. It mattered nothing to him. He did not care the value of a brass button if Cave was Earl of Ellingham or Duke of Ditchmoor; his job was to keep his eye on him,
