It was now evening, and I was beginning to fear that my patrician acquaintance had quite forgotten me, when the waiter presented me the card of "Monsieur Droqville"; and, with no small elation and hurry, I desired him to show the gentleman up. In came the Marquis d'Harmonville, kind and gracious as ever. "I am a night-bird at present," said he, so soon as we had exchanged the little speeches which are usual. "I keep in the shade during the daytime, and even now I hardly ventured to come in a close carriage. The friends for whom I have undertaken a rather critical service, have so ordained it. They think all is lost if I am known to be in Paris. First, let me present you with these orders for my box. I am so vexed that I cannot command it oftener during the next fortnight; during my absence I had directed my secretary to give it for any night to the first of my friends who might apply, and the result is, that I find next to nothing left at my disposal." I thanked him very much. "And now a word in my office of Mentor. You have not come here, of course, without introductions?" I produced half-a-dozen letters, the addresses of which he looked at. "Don't mind these letters," he said. "I will introduce you. I will take you myself from house to house. One friend at your side is worth many letters. Make no intimacies, no acquaintances, until then. You young men like best to exhaust the public amusements of a great city, before embarrassing yourselves with the engagements of society. Go to all these. It will occupy you, day and night, for at least three weeks. When this is over, I shall be at liberty, and will myself introduce you to the brilliant but comparatively quiet routine of society. Place yourself in my hands; and in Paris remember, when once in society, you are always there." I thanked him very much, and promised to follow his counsels implicitly. He seemed pleased, and said: "I shall now tell you some of the places you ought to go to. Take your map, and write letters or numbers upon the points I will indicate, and we will make out a little list. All the places that I shall mention to you are worth seeing." In this methodical way, and with a great deal of amusing and scandalous anecdote, he furnished me with a catalogue and a guide, which, to a seeker of novelty and pleasure, was invaluable. "In a fortnight, perhaps in a week," he said, "I shall be at leisure to be of real use to you. In the meantime, be on your guard. You must not play; you will be robbed if you do. Remember, you are surrounded, here, by plausible swindlers and villains of all kinds, who subsist by devouring strangers. Trust no one but those you know."