It had been agreed between William Pinkerton and Donahue that at Montreal tickets should be purchased to Europe by way of Portland, Maine, and that the party should leave Montreal at a certain time by the Grand Trunk road. The line of this road runs for a number of miles through northern Vermont, and it was customary for the train the men were to take to wait over for an hour at Island Pond, a little place just across the Canadian line. Here, as it was arranged, Robert Pinkerton was to be waiting, ready to take Proctor into custody, and also (though in this part of the arrangement Donahue, of course, was not consulted) Donahue and Collins, should they be so imprudent as to stay on the train until it crossed the line. To the forwarding of this latter end, indeed, a special stratagem was resorted to. Conceiving that Donahue and Collins, in order the more completely to allay Proctor's suspicion, might remain with him until the last station was reached on the Canadian side, the detectives arranged that on this particular night the train should not stop at that station, but push on at full speed to the American side. On a certain Tuesday night, Donahue, Collins, and Proctor took the 10:15 P. M. train at Montreal for Portland. No sooner had they left the station than a Pinkerton representative, who had "shadowed" them aboard, telegraphed the fact to Robert Pinkerton at Island Pond. Proctor went early to his berth in the sleeper. In another berth, not far distant, never closing his eyes through the night, but lying there fully dressed, with weapons ready, was a Pinkerton detective, whose instructions were to accompany the three robbers as long as they were together, and to stay with Proctor to the last. It was five o'clock in the morning when the train drew up at Island Pond. On the platform stood Robert Pinkerton, carrying a requisition from the governor of Pennsylvania on the governor of Vermont for the arrest of Donahue, Collins, and Proctor, charged with robbing the United States Express Company of forty thousand dollars, at Susquehanna, Pennsylvania. The first man to leave the train was the "shadow," who informed his chief that Proctor was sound asleep in berth No. 12. Donahue and Collins, he said, had left the train long before it reached the last station on the Canadian side, so that the plan for their capture had fallen through. Mr. Pinkerton went aboard the sleeper at once, and going to berth No. 12, pushed aside the curtains. He could not see distinctly for the darkness, but borrowing a lantern from one of the trainmen, let the light fall on the face of the person within, and saw it was Proctor, slumbering in complete unconsciousness that his hour of reckoning had come. A gentle push in the ribs awakened him with a start. Recognizing Mr. Pinkerton, he said with admirable coolness: "You have spoiled the whole business. If you had not come in here to arrest me, I would have had those men across the line next week."