I confess I was rather surprised at this energetic conclusion, for my own faith had been rapidly expanding under the strange experiences of that memorable evening. But the visitor himself seemed much hurt and distressed. "Surely," he said, "you won't doubt my word when I tell you plainly that I am the authentic ghost of Algernon Egerton. The word of an Egerton of Egerton Castle was always better than another man's oath, and it is so still, I hope. Besides, my frank and courteous conduct to you both to-night, and the readiness with which I have met all your proposals for scientific examination, certainly entitle me to better treatment at your hands." "I must beg ten thousand pardons," Harry replied, "for the plain language which I am compelled to use. But let us look at the case in a different point of view. During your occasional visits to the world of living men, you may sometimes have travelled in a railway carriage in your invisible form." "I have taken a trip now and then (by a night train, of course), just to see what the invention was like." "Exactly so. Well, now, you must have noticed that a guard insisted from time to time upon waking up the sleepy passengers for no other purpose than to look at their tickets. Such a precaution might be resented, say by an Egerton of Egerton Castle, as an insult to his veracity and his honesty. But, you see, the guard doesn't know an Egerton from a Muggins: and the mere word of a passenger to the effect that he belongs to that distinguished family is in itself of no more value than his personal assertion that his ticket is perfectly _en regle_." "I see your analogy, and I must allow its remarkable force."