"Why are you making all this theatrical display?" said he sarcastically. "You are quite safe here, I assure you. I suspect this society of yours is only a bogey to scare weak-minded people." "It did more than scare Grent," retorted Blake significantly. Darrel shrugged his shoulders. "I shall reserve my opinion until I hear your story," he said good-humouredly. "But first, where does this society you talk of exist?" "In Peru--in Lima." "Then how is it Grent has fallen a victim in London?" "I don't know. Hear my story, and judge for yourself. But I must tell you, Darrel, that this is no fairy tale I relate, but a stubborn fact. People--yourself, for instance--might not believe it, because it is not in the newspapers; but it is true for all that--terribly true, as I have reason to know." He glanced round the room again, and passed his handkerchief over his dry lips. Then he began his tale, in a hurried, nervous fashion, as though he half repented of his resolution to tell it. "I was in Peru some two years ago," he said, "very hard up, and quite alone, without friend or foe in the whole country. I managed to get a billet as clerk in the office of a Scotch merchant; and although the pay was not large, still it was sufficient to keep me alive. In my own way, I managed to enjoy myself, and to gain a fair knowledge of the Spanish tongue. As you may guess, I was by no means satisfied with my position, and I wished to improve it. Hearing much about gold and silver mines, and the unexpectedness with which they were discovered, I used to lurk about the low quarters of Lima in the hope of gathering information regarding these discoveries from stray Indians. I knew that these peons frequently knew about mines of great riches, but from detestation of the Spaniards would never reveal their whereabouts." "And you fancied you might learn the locality of some rich mine?" "Precisely. For that purpose I haunted the native portion of the town, and, as you may guess, met with many adventures, more or less perilous. One of these bore on the mystery of the Blue Mummy." "Let us hear your mystery," said Frank; "it may explain mine." "Possibly it may, Darrel. Well, one night when I was returning at a late hour to my poor lodgings, I had to take my way through some rather lonely streets. The night was dark, few people were about, and the streets were badly lighted; so, recollecting these things, I walked carefully and vigilantly, lest I should be attacked by footpads. Suddenly, as I was nearing my lodgings, I heard a terrible cry for help, and dashed round the corner of a street, to find a man lying in the middle of it. Two other men ran away at the sound of my footsteps; and I found that their victim was seriously wounded. Still, he was sufficiently conscious to speak, and asked me in a faint whisper to look for the Blue Mummy." "Ah! the two men had left it as a token?"