"You know, of course, that Eugene and I are the greatest friends on earth. From news which I received to-day, and which I had little expectation of ever hearing, I have reason, good reason, to hope that within a very short time I am likely to come into possession of an enormous fortune--a fortune so large that it will make me one of the richest men in the kingdom. You are a man of business. To be precise, I expect about half a million. Need I tell you what my first, my greatest pleasure, will be in this? It will be to place the whole of it absolutely at the disposal of my best friend's father, so that he may be led carefully out of the present storm into the calm waters of prosperous trade, in which his honour and his industry have already made his name a household word in Ireland. "This note has run out much longer than I expected. Good-night, my dear Mr. O'Donnell. God bless you. "Dominique Lavirotte." When he had finished his two letters he enclosed them in envelopes, directing the latter first. Then suddenly he thought of what at first sight seemed an insuperable difficulty. How was he to address Crawford's letter? If he wrote on the envelope, "St. Prisca's Tower, Porter Street," there was little doubt that in due time the letter would be returned to him through the dead-letter office. Yet St. Prisca's Tower was the only address he knew for Crawford in London. How stupid it was of him not to have asked for an address. At the time, he had thought Dora or the old man should write to him first. Since they had left, this idea had occurred to him, and now he felt himself hopeless of communicating it to Crawford for the present. No postman would in his senses think of knocking at the massive door of that solitary tower, and if a postman, touched with lunacy, did knock with his knuckles, he would never receive a reply. He was fairly beaten. In this matter every hour was of value, of the highest value; and here he was paralysed by an unpardonable stupidity of his own. "Will you ask Mr. Maher," he said to the nurse, "if he would be good enough to step this way? I want a word with him." When the landlord entered, Lavirotte said: "Mr. Crawford, who was here last night, left for London without giving me his address. Can you think of any means by which I might be able to find it out at once? The matter is of very great importance."