"As General Carleton's message doesn't contain any description of the bearer, but merely tells Maclean to enroll him into service, you may assume what character you please. The messenger was a Tory hunter, from the province of New York, dressed much like you. So it may be well to pretend that character, wearing your own clothes. Captain Hendricks tells me you know enough of Montreal and the intervening country, from description, to answer knowingly if you should be questioned about it. Sit yonder, and read this letter from General Montgomery to me, and this copy of General Carleton's message to Colonel Maclean. They will let you know how matters were at Montreal, and with General Carleton, when the messenger left." Dick glanced down at the papers pushed towards him, and resumed heed of Arnold's instructions, which continued while the speaker now and then jotted down a word or two on a piece of paper: "You will leave the camp with this pass, on the side farthest from the town, so it may appear you are going to reconnoitre up the river; for your destination must of course be a secret, lest some informant of the enemy's might follow and expose you. You will go around the camp by land, and reach the city after dark. The letter you carry will get you admittance without delay. Once within the walls, obtain the information as you are best able to. Put it in writing, and take it to a woman called Mere Frappeur, who keeps a wine shop in the upper town, near the Palace Gate. She is an Irish woman, the widow of a French fish-monger, and she has a boat in which she sometimes goes fishing herself. When you meet her, if no one else is about, whistle 'Molly, my Treasure,'--do you know the tune?" Dick, who had heard Tom fiddle it a thousand times, softly whistled the opening part. Arnold nodded, and went on: "If you look at her in such a manner as to show that the tune is a signal, she will soon come to an understanding with you. You will ask her, in my name, to take your written message, in her boat, at night, close to the shore immediately on this side of the British stockade near the foot of Cape Diamond. There she will whistle 'Molly, my Treasure,' and will be answered with the same tune by a man whom I shall have in waiting there each night, from to-morrow. She will give him the message and afterwards report to you. When you are sure the information is safe in that man's hands, you may escape and report to me, when you find opportunity or create it. I have made some notes here, that you will fix in mind before you start; but destroy that paper and my pass, as soon as you are clear of the camp, so that you will carry no papers to Quebec other than General Carleton's letter."