Two months had passed without my hearing a word of HOLES. I knew he had been summoned to Irkoutsk by the CZAR of Russia in order to help in investigating the extraordinary theft of one of the Government silver mines, which had completely and mysteriously disappeared in one night. All the best intellects of the terrible secret police, the third section of the Government of the Russian Empire, had exhausted themselves in the vain endeavour to probe this mystery to the bottom. Their failure had produced a dangerous commotion in the Empire of the CZAR; there were rumours of a vast Nihilist plot, which was to shake the Autocracy to its foundations, and, as a last resource, the CZAR, who had been introduced to HOLES by OLGA FIASKOFFSKAIA, the well-known Russian Secret Agent at the Court of Lisbon, had appealed to the famous detective to lend his aid in discovering the authors of a crime which was beginning to turn the great white CZAR into ridicule in all the bazaars of Central Asia. HOLES, whose great mind had been lying fallow for some little time, had immediately consented; and the last I had seen of him was two months before the period at which this story opens, when I had said good-bye to him at Charing-Cross Station. As for myself, I was spending a week in a farmhouse situated close to the village of Blobley-in-the-Marsh. Three miles from the gates of the farmhouse lay Fourcastle Towers, the ancestral mansion of Rear-Admiral the Duke of DUMPSHIRE, the largest and strangest landowner of the surrounding district. I had a nodding acquaintance with His Grace, whom I had once attended for scarlatina when he was a midshipman. Since that time, however, I had seen very little of him, and, to tell the truth, I had made no great effort to improve the acquaintance. The Duke, one of the haughtiest members of our blue-blooded aristocracy, had been called by his naval duties to all parts of the habitable globe; I had steadily pursued my medical studies, and, except for the biennial visit which etiquette demanded, I had seen little or nothing of the Duke. My stay at the farmhouse was for purposes of rest. I had been overworked, that old tulwar wound, the only memento of the Afghan Campaign, had been troubling me, and I was glad to be able to throw off my cares and my black coat, and to revel for a week in the rustic and unconventional simplicity of Wurzelby Farm. One evening, two days after my arrival, I was sitting in the kitchen close to the fire, which, like myself, was smoking. For greater comfort I had put on my old mess-jacket. The winter wind was whistling outside, but besides that only the ticking of the kitchen clock disturbed my meditations. I was just thinking how I should begin my article on Modern Medicine for the _Fortnightly Review_, when a slight cough at my elbow caused me to turn round. Beside me stood PICKLOCK HOLES, wrapped in a heavy, close-fitting fur _moujik_. He was the first to speak.