"That you, Hersheimmer? Beresford speaking. I'm at Waterloo. I've followed Whittington and another man here. No time to explain. Whittington's off to Bournemouth by the 3.30. Can you get there by then?"

The reply was reassuring.

"Sure. I'll hustle."

The telephone rang off. Tommy put back the receiver with a sigh of relief. His opinion of Julius's power of hustling was high. He felt instinctively that the American would arrive in time.

Whittington and Boris were still where he had left them. If Boris remained to see his friend off, all was well. Then Tommy fingered his pocket thoughtfully. In spite of the carte blanche assured to him, he had not yet acquired the habit of going about with any considerable sum of money on him. The taking of the first-class ticket to Bournemouth had left him with only a few shillings in his pocket. It was to be hoped that Julius would arrive better provided.

In the meantime, the minutes were creeping by: 3.15, 3.20, 3.25, 3.27. Supposing Julius did not get there in time. 3.29… Doors were banging. Tommy felt cold waves of despair pass over him. Then a hand fell on his shoulder.

"Here I am, son. Your British traffic beats description! Put me wise to the crooks right away."

"That's Whittington-there, getting in now, that big dark man. The other is the foreign chap he's talking to."

"I'm on to them. Which of the two is my bird?"

Tommy had thought out this question.

"Got any money with you?"

Julius shook his head, and Tommy's face fell.

"I guess I haven't more than three or four hundred dollars with me at the moment," explained the American.

Tommy gave a faint whoop of relief.

"Oh, Lord, you millionaires! You don't talk the same language! Climb aboard the lugger. Here's your ticket. Whittington's your man."

"Me for Whittington!" said Julius darkly. The train was just starting as he swung himself aboard. "So long, Tommy." The train slid out of the station.

Tommy drew a deep breath. The man Boris was coming along the platform towards him. Tommy allowed him to pass and then took up the chase once more.

From Waterloo Boris took the tube as far as Piccadilly Circus. Then he walked up Shaftesbury Avenue, finally turning off into the maze of mean streets round Soho. Tommy followed him at a judicious distance.

They reached at length a small dilapidated square. The houses there had a sinister air in the midst of their dirt and decay. Boris looked round, and Tommy drew back into the shelter of a friendly porch. The place was almost deserted. It was a cul-de-sac, and consequently no traffic passed that way. The stealthy way the other had looked round stimulated Tommy's imagination. From the shelter of the doorway he watched him go up the steps of a particularly evil-looking house and rap sharply, with a peculiar rhythm, on the door. It was opened promptly, he said a word or two to the doorkeeper, then passed inside. The door was shut to again.

It was at this juncture that Tommy lost his head. What he ought to have done, what any sane man would have done, was to remain patiently where he was and wait for his man to come out again. What he did do was entirely foreign to the sober common sense which was, as a rule, his leading characteristic. Something, as he expressed it, seemed to snap in his brain. Without a moment's pause for reflection he, too, went up the steps, and reproduced as far as he was able the peculiar knock.

The door swung open with the same promptness as before. A villainous-faced man with close-cropped hair stood in the doorway.

"Well?" he grunted.

It was at that moment that the full realization of his folly began to come home to Tommy. But he dared not hesitate. He seized at the first words that came into his mind.

"Mr. Brown?" he said.

To his surprise the man stood aside.

"Upstairs," he said, jerking his thumb over his shoulder, "second door on your left."

Chapter VIII. The Adventures of Tommy

TAKEN aback though he was by the man's words, Tommy did not hesitate. If audacity had successfully carried him so far, it was to be hoped it would carry him yet farther. He quietly passed into the house and mounted the ramshackle staircase. Everything in the house was filthy beyond words. The grimy paper, of a pattern now indistinguishable, hung in loose festoons from the wall. In every angle was a grey mass of cobweb.

Tommy proceeded leisurely. By the time he reached the bend of the staircase, he had heard the man below disappear into a back room. Clearly no suspicion attached to him as yet. To come to the house and ask for "Mr. Brown" appeared indeed to be a reasonable and natural proceeding.

At the top of the stairs Tommy halted to consider his next move. In front of him ran a narrow passage, with doors opening on either side of it. From the one nearest him on the left came a low murmur of voices. It was this room which he had been directed to enter. But what held his glance fascinated was a small recess immediately on his right, half concealed by a torn velvet curtain. It was directly opposite the left-handed door and, owing to its angle, it also commanded a good view of the upper part of the staircase. As a hiding-place for one or, at a pinch, two men, it was ideal, being about two feet deep and three feet wide. It attracted Tommy mightily. He thought things over in his usual slow and steady way, deciding that the mention of "Mr. Brown" was not a request for an individual, but in all probability a password used by the gang. His lucky use of it had gained him admission. So far he had aroused no suspicion. But he must decide quickly on his next step.

Suppose he were boldly to enter the room on the left of the passage. Would the mere fact of his having been admitted to the house be sufficient? Perhaps a further password would be required, or, at any rate, some proof of identity. The doorkeeper clearly did not know all the members of the gang by sight, but it might be different upstairs. On the whole it seemed to him that luck had served him very well so far, but that there was such a thing as trusting it too far. To enter that room was a colossal risk. He could not hope to sustain his part indefinitely; sooner or later he was almost bound to betray himself, and then he would have thrown away a vital chance in mere foolhardiness.

A repetition of the signal knock sounded on the door below, and Tommy, his mind made up, slipped quickly into the recess, and cautiously drew the curtain farther across so that it shielded him completely from sight. There were several rents and slits in the ancient material which afforded him a good view. He would watch events, and any time he chose could, after all, join the assembly, modelling his behaviour on that of the new arrival.

The man who came up the staircase with a furtive, soft-footed tread was quite unknown to Tommy. He was obviously of the very dregs of society. The low beetling brows, and the criminal jaw, the bestiality of the whole countenance were new to the young man, though he was a type that Scotland Yard would have recognized at a glance.

The man passed the recess, breathing heavily as he went. He stopped at the door opposite, and gave a repetition of the signal knock. A voice inside called out something, and the man opened the door and passed in, affording Tommy a momentary glimpse of the room inside. He thought there must be about four or five people seated round a long table that took up most of the space, but his attention was caught and held by a tall man with close-cropped hair and a short, pointed, naval-looking beard, who sat at the head of the table with papers in front of him. As the new-comer entered he glanced up, and with a correct, but curiously precise enunciation, which attracted Tommy's notice, he asked: