cute 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.

"That is Anatole, I am nearly sure," said Curtis.

"Why not jump out and grab him now?" suggested Devar.

"Do you gentlemen mind following him for a time?" asked the policeman.

"No, I'm game for anything. And you, Curtis?"

"Oh, I feel ready to start the night all over again."

The street-cars went on, and the gray automobile darted through the
first possible opening.

"You see, it is this way," explained the official. "I am prepared to
arrest the man on Mr. Curtis's evidence, because I couldn't have better
testimony than that of the chief witness. But I've been chewing on
this thing for the past few minutes, and it strikes me that we gain
nothing by acting in a hurry. You may be sure that this fellow, even
if he is the person we want, will deny it, and a day or two may be lost
in proving his identity, or collecting facts which would support the
theory that he was the chauffeur connected with the crime. Now, if we
let him go on, we shall certainly have a better hold over him. We'll
find out his destination--perhaps secure a very useful address, or,
with real luck, discover that he is keeping a fixture with some other
individual."

"In a word, we must watch and pray," said Devar.

"Well, we can wait and see, anyhow," said the practical minded
McCulloch.

His counsel sounded