"I--I don't know, my dear sir, but I have been afraid to go; and here, all at once, in the most casual way, I suddenly make the acquaintance of a medical man, and find him seated opposite to me, talking in a friendly way which quite invites my confidence. It is strange, is it not?" "Very strange, indeed," said Chester, gazing hard in the pleasant, bland old countenance before him. "But really, my dear sir, I do not think you require medical advice." The old man returned the fixed gaze and then said appealingly-- "I hope, my dear sir, you are speaking sincerely." "Of course," replied Chester. "Not as doctors sometimes do, to encourage their patients?" "Certainly not," cried Chester. "There is every sign of a vigorous, green old age about you." "That is very pleasant to hear, my dear sir," said the old man, "very pleasant. I don't think I am one ready to repine, or one who would seek to live for selfish considerations--love of pleasure or the like--but I have so much to do. I want years yet to complete my collection, and I may have to go over to Leyden, Leipsic, Nuremberg, Florence, and several of the other Continental towns which were the birthplaces of many of these old tomes which you see upon my shelves." "I see no reason why you should not live for years yet, sir," said Chester, encouragingly. "But my head--my brain. I find I grow forgetful, my dear sir. I put away books and forget their places. All little symptoms, are they not, of failing powers?" "To be perfectly candid, certainly they are," said Chester; "but in a healthy old age these failings come very, very gradually, and nature suggests so many ways of palliating them. For instance, a clever young secretary with a methodical turn of mind would relieve you of a trouble like this. Really I do not think that you have any occasion to trouble yourself about such a symptom as that, any more than you have about the failing powers of sight which compelled you to take to glasses." "My dear young friend!" cried the old man, leaning forward to catch at his visitor's hand, "I cannot find words to express my gratitude. You do not know what a relief your words have been to me. It is wonderful, and upon such a casual acquaintanceship. But I sincerely hope that you will let me see more of you--er--that is, if I am not troublesome to you; such a wearisome old bookworm as I fear I must be. But the mouse helped the lion, you know, and who knows but what I may be able to help you with some information about your friends next door--let me see, I think you said it was the people next door whom you had been trying to find." "I did not say so," said Chester, quietly. "I beg your pardon; but you do wish to know something about them." "Well, frankly, yes, I do," said Chester.