You may imagine that I had plenty to think of from the time that I left Brook Street until I set out to meet Lord Linchmere at Paddington. The whole fantastic business kept arranging and rearranging itself in kaleidoscopic forms inside my brain, until I had thought out a dozen explanations, each of them more grotesquely improbable than the last. And yet I felt that the truth must be something grotesquely improbable also. At last I gave up all attempts at finding a solution, and contented myself with exactly carrying out the instructions which I had received. With a hand valise, specimen-case, and a loaded cane, I was waiting at the Paddington bookstall when Lord Linchmere arrived. He was an even smaller man than I had thought--frail and peaky, with a manner which was more nervous than it had been in the morning. He wore a long, thick travelling ulster, and I observed that he carried a heavy blackthorn cudgel in his hand. "I have the tickets," said he, leading the way up the platform. "This is our train. I have engaged a carriage, for I am particularly anxious to impress one or two things upon you while we travel down." And yet all that he had to impress upon me might have been said in a sentence, for it was that I was to remember that I was there as a protection to himself, and that I was not on any consideration to leave him for an instant. This he repeated again and again as our journey drew to a close, with an insistence which showed that his nerves were thoroughly shaken. "Yes," he said at last, in answer to my looks rather than to my words, "I AM nervous, Dr. Hamilton. I have always been a timid man, and my timidity depends upon my frail physical health. But my soul is firm, and I can bring myself up to face a danger which a less-nervous man might shrink from. What I am doing now is done from no compulsion, but entirely from a sense of duty, and yet it is, beyond doubt, a desperate risk. If things should go wrong, I will have some claims to the title of martyr." This eternal reading of riddles was too much for me. I felt that I must put a term to it. "I think it would very much better, sir, if you were to trust me entirely," said I. "It is impossible for me to act effectively, when I do not know what are the objects which we have in view, or even where we are going."