"Silas," he said, seating himself at the table, "the time has now come for me to explain my plan for your salvation. To-morrow morning, at an early hour, Prince Florizel of Bohemia returns to London, after having diverted himself for a few days with the Parisian Carnival. It was my fortune, a good while ago, to do Colonel Geraldine, his Master of the Horse, one of those services, so common in my profession, which are never forgotten upon either side. I have no need to explain to you the nature of the obligation under which he was laid; suffice it to say that I knew him ready to serve me in any practicable manner. Now, it was necessary for you to gain London with your trunk unopened. To this the Custom House seemed to oppose a fatal difficulty; but I bethought me that the baggage of so considerable a person as the Prince is, as a matter of courtesy, passed without examination by the officers of Custom. I applied to Colonel Geraldine, and succeeded in obtaining a favourable answer. To-morrow, if you go before six to the hotel where the Prince lodges, your baggage will be passed over as a part of his, and you yourself will make the journey as a member of his suite." "It seems to me, as you speak, that I have already seen both the Prince and Colonel Geraldine; I even overheard some of their conversation the other evening at the Bullier Ball." "It is probable enough; for the Prince loves to mix with all societies," replied the Doctor. "Once arrived in London," he pursued, "your task is nearly ended. In this more bulky envelope I have given you a letter which I dare not address; but in the other you will find the designation of the house to which you must carry it along with your box, which will there be taken from you and not trouble you any more." "Alas!" said Silas, "I have every wish to believe you; but how is it possible? You open up to me a bright prospect, but, I ask you, is my mind capable of receiving so unlikely a solution? Be more generous, and let me further understand your meaning." The Doctor seemed painfully impressed. "Boy," he answered, "you do not know how hard a thing you ask of me. But be it so. I am now inured to humiliation; and it would be strange if I refused you this, after having granted you so much. Know, then, that although I now make so quiet an appearance--frugal, solitary, addicted to study--when I was younger, my name was once a rallying-cry among the most astute and dangerous spirits of London; and while I was outwardly an object for respect and consideration, my true power resided in the most secret, terrible, and criminal relations. It is to one of the persons who then obeyed me that I now address myself to deliver you from your burden. They were men of many different nations and dexterities, all bound together by a formidable oath, and working to the same purposes; the trade of the association was in murder; and I who speak to you, innocent as I appear, was the chieftain of this redoubtable crew."