"I first came here," replied Jack, "shortly after the sale of the Yankee Boy group of properties had been consummated. Within a few months afterward, the company located the Lucky Chance mine; development work was carried forward as rapidly as possible, quite a number of men being employed, of which I was one. It was evident that in locating this mine, the company hoped they had struck an extension of the vein of the Yankee Boy lode; it proved of an entirely different character, however, yielding rather a low-grade ore. The claim was surveyed and patented as soon as the necessary amount of improvements, required by law, had been placed upon it. After obtaining patent, the company then extended the tunnel in an entirely different direction, and, as you will find upon investigation, beyond the boundary line, until it intersected a portion of the Yankee Boy vein. Here a body of very rich ore was struck, and the mine has been a paying property ever since. For this last work very few men were retained, and but few have been employed there since, those few being men whom the company thought could be trusted, or upon whom they had some hold by which they could compel them to silence. I was employed there until very recently, and from the first had a thorough understanding of the course and extent of the different workings, and consequently am perfectly familiar with them." "Everard," said Van Dorn, for whom work of this kind possessed a special attraction, "I think this is just about the kind of an expedition we will like." "I think so myself," Houston replied, "but at the same time, it is the most risky piece of work we have yet undertaken, and we will have to depend upon our friend here for suggestions and advice. You will of course accompany us?" he added, turning to Jack, who had withdrawn from the table and was sitting in the dim light. "Certainly," responded Jack, "it would be a very dangerous undertaking for two strangers to go through that part of the mine without a guide at any time, especially at night, and it will be at best, a hazardous piece of work." "How many are employed there? and what class of men are they?" inquired Houston. "About a dozen on the night shift," Jack replied, "mostly Cornishmen, but whatever their nationality, it is usually the most treacherous and brutal men that we have that are employed by the company in that mine. Maverick used to work there until he was transferred above ground. It will not be necessary for us to come in contact with very many of them, however, as they are so widely scattered through the mine, and on the night shift next week, there will be four men,--a father and three sons,--who will do just about whatever I say, especially if a little money is given them. Mr. Houston's new position as superintendent, will aid us very materially. A visit from him, with me as guide, will not excite suspicion, but Mr. Van Dorn will be suspected in a moment, and we must disguise him."