"Oh!" said Fanks, looking up sharply, "and this person?" "Herbert Vaud; the son of the lawyer you saw the other day." "You don't say so," exclaimed Fanks, eagerly, "you laugh at chance, Garth; well, here is another chance which may put us on the right track. If we solve the mystery of Emma Calvert, we may unravel the Tooley Alley enigma. Tell me all you know; omit no detail. Begin, begin!" Flattered by the interest taken in his discovery, Garth related at great length the extraordinary conduct of young Vaud; the cause of such conduct as explained by the elder Vaud; and drew attention to the fact that if confronted with the missing woman, Herbert might be able to recognise her, either as an imposter, or as the dead Emma Calvert. Fanks listened with the closest attention; nor did he venture a remark until Garth had concluded his story. Then he drew a breath and reflected. "It is most extraordinary," he said at length, "dare you disbelieve in chance. Chance led you to the office of the Vauds; chance made you scribble that name on the paper; chance drew the attention of Herbert Vaud to the name. I have always found that chance is my best friend." "All this is beside the point," said Garth, impatiently, "what do you say?" "Your discovery may lead to something," replied Fanks, cautiously. "I shall see Herbert Vaud after I have interviewed Hersham. Between the two of them I may learn something likely to throw light on the darkness of this case; but we are only on the threshold of our difficulties as yet." Garth rose to take his leave. "I agree with you," he said, "the future looks anything but hopeful. But I shall leave you now; as you are tired after your long journey." Fanks stretched himself. "I am rather weary," he remarked, yawning, "and I shan't be sorry to go to bed. Come and see me to-morrow, and I'll tell you how I get on with Hersham. And Garth," added Fanks, going to the door with his guest, "don't do any more detective business on your own account. It will take me some time to exhaust the information you have brought me. When I have arrived at some conclusion regarding this new evidence, I shall tell you what to do." Garth was quite willing to be guided by Fanks' advice; the more so as he was entirely at a loss how to proceed, and was waiting for the more experienced head of the detective to guide him. With quite sufficient to think about for the next twenty-four hours he took his departure, and left Fanks to enjoy a well-earned rest.