The aim of these inquiries was to determine if the person, whom two physicians and three assistants were endeavoring to nurse back to health on the top of a wild plateau in a remote district of New Mexico, was the man he had once entertained at his own board in England, and the adventures thus incurred would make a story in itself. But the result seemed to justify them. Word came after innumerable delays, very trying to Mr. Grey, that he was not the same, though he bore the name of Fairbrother, and was considered by every one around there to be Fairbrother. Mr. Grey, ignorant of the relations between the millionaire master and his man which sometimes led to the latter’s personifying the former, was confident of his own mistake and bitterly ashamed of his own suspicions. But a second message set him right. A deception was being practised down in New Mexico, and this was how his spy had found it out. Certain letters which went into the sick tent were sent away again, and always to one address. He had learned the address. It was that of James Wellgood, C—, Maine. If Mr. Grey would look up this Wellgood he would doubtless learn something of the man he was so interested in. This gave Mr. Grey personally something to do, for he would trust no second party with a message involving the honor of a possibly innocent man. As the place was accessible by railroad and his duty clear, he took the journey involved and succeeded in getting a glimpse in the manner we know of the man James Wellgood. This time he recognized Fairbrother and, satisfied from the circumstances of the moment that he would be making no mistake in accusing him of having taken the Great Mogul, he intercepted him in his flight, as you have already read, and demanded the immediate return of his great diamond. And Fairbrother? We shall have to go back a little to bring his history up to this critical instant.