When the conductor came through, Harry paid his fare in cash.

A short time afterward one of the girl’s male companions made a trip from one end of the train to the other.

He sharply eyed every passenger on the cars and favored Harry with a particularly keen and searching stare.

It made the boy imagine for an instant that his identity was known, but he never flinched.

The man passed on, however, without making any remark.

It took fifteen hours to make the run, and it was three o’clock on the following afternoon before the train pulled into Montreal.

Shadowing the girl smuggler and her companions, Harry saw them go to a hotel, where the men left her.

While they went down to the Dominion Line dock, the girl passed into the hotel and Harry saw her go upstairs.

The hotel clerk, a dudish young fellow, was staring after her when Harry approached him and said: 

“Deuced pretty girl that.”

“Very,” assented the clerk.  “A widow, too!”

“Rather young to be a widow, don’t you think?”

“Yes, indeed.”

“What’s her name?”

“Mrs. Marie P. Savoy.”

“Been here long?”

“A week.”

“Alone?”

“She came in on the steamer Dominion from Havre alone, but her mother and father soon joined her here.  She went down to Toronto a few days ago leaving the old folks here.  She’s just returned.”

“I see.  I’d like to get acquainted with her.”

“You may if you stop here.”

“That’s what I’m going to do.  Give me a good room.”

“Very well, sir.  Got any baggage?”

“None, whatever.  I came from Niagara in a hurry.”

“You can have No. 37.  That’s right next to the one occupied by the beautiful young widow.  Perhaps it may lead to your becoming acquainted with her as you wish.”

“I hope so,” laughed Harry, who was delighted at his good luck.  “Got a telegraph station here?”

“No.  But there’s one across the street.”

Harry went out and telegraphed to Old King Brady to come and meet him in Montreal and then went to his room.

While washing, he heard the hum of voices in Clara La Croix’s room, and gliding over to the wall, pressed his ear against the partition.

It was a hollow wall and nearly every word was quite audible.

The first thing he heard was a man’s voice which he did not recognize, but presumed was La Croix, asking: 

“Well, how did you make out in Toronto, Clara?”

“All right,” the girl replied.  “I found your four spies there.  They report that the Custom House inspectors at Niagara Falls are on the alert.  There has been a shaking up of the department.  The Collector of the Port of New York is dissatisfied with the amount of smuggling that is being carried on, and made it very hot for everybody.”

“That ees bad for us.”