He felt pretty sure he would not be known in this outfit, and passing inside the car, he took a seat.
The distance between Toronto and Montreal was about 350 miles along the Lake Ontario and the St. Lawrence river.
"I don't believe La Croix or his wife are in Toronto," the boy muttered, "for we've gone over the city with a fine-toothed comb, and failed to find the slightest sign of them. They must be either in Montreal or Quebec, for the girl is going to the former place. Miss Clara made a quick trip. She could not have been here long from Holland. And I presume she is laden with those diamonds she went after. La Croix is now doubtless scheming to smuggle them over the border into the United States. We've got to watch these people closely now. That Frenchman is a desperate man. We have seen that he would not stop at murder to attain his purposes. When I reach Montreal, I must telegraph Old King Brady to come on and meet me. He will be wondering what has become of me now."
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.