Next door to this old house, at the time I am to speak of, a much newer building stood, especially built for letting out in offices. It happened that one day as Hewitt left his office for a late lunch, he became aware of a pallid and agitated Jew who was pervading the front door of this adjoining building. The man exhibited every sign of nervous expectancy, staring this way and that up and down the busy street, and once or twice rushing aimlessly half-way up the inner stairs, and as often returning to the door. Apprehension was plain on his pale face, and he was clearly in a state that blinded his attention to the ordinary matters about him, just as happens when a man is in momentary and nervous expectation of some serious event.

Noting these things as he passed, with no more than the observation that was his professional habit, Hewitt proceeded to his lunch. This done with, he returned to his office, perceiving, as he passed the next-door building, that the distracted Jew was no longer visible. It seemed plain that the person or the event he had awaited with such obvious nervousness had arrived and passed; one more of the problems, anxieties or crises that join and unravel moment by moment in the human ant-hill of London, had perhaps closed for good or ill within the past half-hour; perhaps it had only begun.

A message awaited Hewitt at his office—an urgent message. The housekeeper had come in from next door, Kerrett reported, with an urgent request that Mr. Martin Hewitt would go immediately to the offices of Mr. Denson, on the third floor. The housekeeper seemed to know little or nothing of the business, except that a Mr. Samuel was alone in Mr. Denson's office, and had sent the message.

With no delay Hewitt transferred himself to the next-door offices. There the housekeeper, who inhabited a uniform and a glass box opposite the foot of the first flight of stairs, directed Hewitt, with the remark that the gentleman was very impatient and very much upset. "Third floor, sir, second door on the right; name Denson on the door. There's no lift."

"W.F. Denson" was the complete name, followed by the line "Foreign and Commission Agent." This Hewitt read with some little difficulty, for the door was open, and on the threshold stood that same agitated Jew whom Hewitt had seen at the front door.

A little less actively perturbed now, he was nevertheless still nervously pale. "Mr. Martin Hewitt?" he cried, while Hewitt was still only at the head of the stairs. "Is it Mr. Martin Hewitt?"

Hewitt came quietly along the corridor, using eyes and ears as he came. The Jew was a man of middle height, very obviously Jewish, and with a slight accent that hinted a Continental origin.

"I have just received your message," Hewitt said, "and, as you see, I am here with no delay. Is Mr. Denson in?"

"No—good heafens no—I would gif anything if he was, Mr. Hewitt. Come in, do! I haf been robbed—robbed by Denson himself, wit'out a wort of doubt. It is terrible—terrible! Fifteen t'ousant pounds! It ruins me, Mr. Hewitt, ruins me! Unless you can recover it! If you recover it, I will pay—pay—oh, I will pay fery well indeed!"

There was a characteristically sudden moderation of the client's emphasis when he came to the engagement to pay. Hewitt had observed it in other clients, but it did not disturb him.