"I don't know. I believe it tells the Austrians their real name, but I couldn't translate a line of it to save my life."

Curtis leaned back in the car and laughed.

"You are by way of being a genius," he said. "I have seen a crowd go stark, staring mad because some idiot waved a black flag, but that was a symbol of the Boxer rebellion, and it meant something. In this instance, among people so far away from their own country, one would hardly expect----"

He broke off suddenly, and leaned forward.

The car had just entered Madison Square, at the junction of Broadway and Fifth Avenue, south of 23rd Street. A Columbus Avenue street-car had halted to allow traffic to pa.s.s, and a gray automobile which was coming out of Fifth Avenue had been held up by a policeman stationed there. Curtis's attention was caught by the color and shape of the vehicle, and in the flood of light cast by the powerful lamps and brilliant electric devices concentrated on that important crossing, he obtained a vivid glimpse of the chauffeur's face.

"Devar," he said, and some electrical quality in his voice startled his mercurial companion, "tell your man to overtake that car and run it into the sidewalk. The driver is 'Anatole,' and it is our duty to stop him!"

At that instant the policeman signaled the uptown traffic to move on.

CHAPTER XI

ONE O'CLOCK

Devar had the nimble wits of a fox, and the blood which raced in his veins was volatile as quicksilver. The same glance which showed him the gray automobile stealing softly across the network of car-lines of one of the city's main thoroughfares revealed a roundsman crossing the square.

"Friend Anatole may be heeled," he said. "Let's get help."

Leaning out, he shouted to Arthur, whose other name was Brodie:

"Pull in alongside the cop. I want to speak to him."

The chauffeur obeyed, and the policeman turned a questioning eye on the car, thinking some idiot meant to run him down. Devar had the door open in a second.

"Have you heard of the murder in 27th Street, outside the Central Hotel?" he said, almost bewildering the man by his eager directness.

"Of course I have," came the answer, quickly enough.

"Well, the car mixed up in it is right ahead. There it is, making for Fifth Avenue. Jump in! We'll explain as we go."

The roundsman needed no second invitation. Obviously, unless some brainless young fool was trying to be humorous, there was no time to spare for words. He sprang inside, and Devar cried to the surprised chauffeur:

"Follow that gray auto. Don't kill anybody, but hit up the speed until we are close behind it, and then I'll tell you what next to do."

Little recking what this order really meant, for its true inwardness was hidden at the moment from the ken of those far better versed than he in the tangle of events, Brodie changed gear and touched the accelerator, and the machine whirred past Admiral Farragut's statue at a pace which would have caused even doughty "Old Salamander" to blink with astonishment.

While four pairs of eyes were watching the fast moving vehicle in front, Curtis gave the policeman a brief resume of the night's doings since he and Devar had gone with Steingall to the Police Headquarters.

There was no need to say much about the actual crime, because the man had full details, with descriptions of the man-slayers, in his notebook.

He was a shrewd person, too. His name was McCulloch; his father had emigrated from Belfast, and a man of such ancestry seldom takes anything for granted.

"I suppose you are not quite certain, Mr. Curtis, that the chauffeur driving that car ahead is the 'Anatole' concerned in the death of Mr.

Hunter?" he asked.

But Curtis was of a cautious temperament, too.

"No," he said, "that is more than I dare state, even if I had an opportunity to look at him closely. As it is, I merely received what I may term 'an impression' of him. That, together with the marked similarity of the car to the one I saw outside the hotel, seems to offer reasonable ground for inquiry at any rate."

"Did you notice the number of this car?"

"No, not exactly. I believe it differs from that which I undoubtedly did see and put on record."

"Of course, the plate must have been changed or he would never venture in this locality again. If you are right, sir, the fellow must possess a mighty cool nerve, because he is just pa.s.sing 27th Street, within a few yards of the hotel."

Somehow, the fact had escaped Curtis's remembrance; excellent though his topographical sense might be, he was still sufficient of a stranger in New York not to appreciate the bearings of particular localities with the prompt discrimination necessarily displayed by the policeman.

During the succeeding few seconds none of the occupants of the limousine spoke. Devar was kneeling on one of the front seats, and the roundsman, who had removed his uniform hat to avoid attracting notice when a lamp shone directly into the interior, quietly took stock of the men who had so unceremoniously called him off his tour of inspection.

Evidently he satisfied himself that he was not being dragged into a wild-goose chase. Their tense manner could hardly have been a.s.sumed: they were in desperate and deadly earnest; so he thanked the stars which had brought him into active connection with an important crime, and gave his mind strictly to the business in hand. Several knotty points demanded careful if speedy decision. The chased automobile might prove to be an innocent vehicle, driven by a chauffeur above suspicion, and if its owner appeared in the guise of some highly influential person he, the roundsman, might be called to sharp account for exceeding his duty in making an arrest, or, if he stopped short of that extreme course, in conducting an offensive inquiry.

Brodie took his instructions literally, and the distance between the two cars was diminishing sensibly. It seemed, too, as though the driver of the gray car slackened pace after pa.s.sing 27th Street, although Fifth Avenue was fairly clear of traffic, which, such as it was, consisted mainly of motors going uptown--that is to say, in the same direction as pursued and pursuer.

At 34th Street came a check. A cross-town street-car caused the gray automobile to swerve rapidly in order to avoid a collision, and Brodie, a methodical person of law-abiding instincts, lost nearly fifty yards in allowing the streetcar to pa.s.s.

"Whoever he may be, he is not going to make any unnecessary stops,"

commented the roundsman, fully alive to the significance of the incident, since ninety-nine drivers out of a hundred would have applied the brake and allowed the heavy public conveyance to get out of the way.

"Unless the Hungarian a.s.sa.s.sins of New York are bang up-to-date in the benzine part of their stock-in-trade, our car will make good in the next two blocks," said Devar, over his shoulder.

And, indeed, it almost appeared that Brodie had heard what was said.

He bent forward slightly, touched a few taps with skilled fingers, squared his shoulders, and set about the race with the air of a man who thought it had lasted long enough.

Nearing 42nd Street, he had reduced the gap to little more than twice the length of the car, and the three men saw the number plate clearly.

Not only did the number differ, but it was of another series.

"That's a New Jersey car," announced the policeman.

"It may be a New Jersey number," Curtis corrected him, "but I still retain my belief that we are following the right man and the right car."

Just then no less than four cross-town electric cars loomed into sight, and completely blocked the avenue at its intersection with 42nd Street.

The gray automobile had to pull up very quickly, and Brodie was compelled to execute a neat half-turn to clear the rear wheels. In the result, both cars halted side by side, but Curtis found himself just short of a position whence he could obtain a second look at the suspected man.

The policeman had bent low in his seat, lest his uniform should be seen, but he, like his companions, gave a sharp glance into the interior of the other car. It was empty.

He was seated on the near side, however, and he noticed that the lower panel behind the door had been cleaned since the remainder of the paint-work was touched, and the step bore signs of a recent washing.

Devar lowered one of the front sashes a couple of inches.

"Don't look round, Arthur," he said in a low tone, "and don't take any notice of the chauffeur, but creep forward a foot or two, and then let him go ahead again."

Brodie sat like a sphinx, and apparently did nothing, yet the car moved. Sacrificing himself, Roundsman McCulloch fell back into his corner, and left the window clear for Curtis.

"Well?" he inquired, and, surfeited though he might be with New York sensations, the others were conscious of just a hint of excitement in his voice.