On his way home Mr. Rolles purchased a work on precious stones and several of Gaboriau's novels. These last he eagerly skimmed until an advanced hour in the morning; but although they introduced him to many new ideas, he could nowhere discover what to do with a stolen diamond. He was annoyed, moreover, to find the information scattered amongst romantic story-telling, instead of soberly set forth after the manner of a manual; and he concluded that, even if the writer had thought much upon these subjects, he was totally lacking in educational method. For the character and attainments of Lecoq, however, he was unable to contain his admiration. "He was truly a great creature," ruminated Mr. Rolles. "He knew the world as I know Paley's Evidences. There was nothing that he could not carry to a termination with his own hand, and against the largest odds. Heavens!" he broke out suddenly, "is not this the lesson? Must I not learn to cut diamonds for myself?" It seemed to him as if he had sailed at once out of his perplexities; he remembered that he knew a jeweller, one B. Macculloch, in Edinburgh, who would be glad to put him in the way of the necessary training; a few months, perhaps a few years, of sordid toil, and he would be sufficiently expert to divide and sufficiently cunning to dispose with advantage of the Rajah's Diamond. That done, he might return to pursue his researches at leisure, a wealthy and luxurious student, envied and respected by all. Golden visions attended him through his slumber, and he awoke refreshed and light-hearted with the morning sun. Mr. Raeburn's house was on that day to be closed by the police, and this afforded a pretext for his departure. He cheerfully prepared his baggage, transported it to King's Cross, where he left it in the cloak-room, and returned to the club to while away the afternoon and dine. "If you dine here to-day, Rolles," observed an acquaintance, "you may see two of the most remarkable men in England--Prince Florizel of Bohemia, and old Jack Vandeleur." "I have heard of the Prince," replied Mr. Rolles; "and General Vandeleur I have even met in society." "General Vandeleur is an ass!" returned the other. "This is his brother John, the biggest adventurer, the best judge of precious stones, and one of the most acute diplomatists in Europe. Have you never heard of his duel with the Duc de Val d'Orge? of his exploits and atrocities when he was Dictator of Paraguay? of his dexterity in recovering Sir Samuel Levi's jewellery? nor of his services in the Indian Mutiny--services by which the Government profited, but which the Government dared not recognise? You make me wonder what we mean by fame, or even by infamy; for Jack Vandeleur has prodigious claims to both. Run down-stairs," he continued, "take a table near them, and keep your ears open. You will hear some strange talk, or I am much misled." "But how shall I know them?" inquired the clergyman.