To these scanty particulars was attached a memorandum to the effect that he was cramped by a limit I had mentioned as to the amount of the expenses to be incurred in his investigation. It was a measure of prudence I had adopted, for I was not inclined to give him quite a free hand, but it seemed to be fated that my desires to reach the heart of the mystery should be continually baffled by meeting with closed doors, and I now determined to be more liberal in my instructions. I wrote to Mr. Dickson to this effect, inwardly marveling as I wrote the letter that, in a matter in which I did not appear to be in any way personally interested, I should be impelled into a reckless course of expenditure. But, casting my eyes downward, I saw the phantom cat at my feet, and I felt that I should not be released from this frightful companion until my task was completed. "Rest content," I said to the specter; "I will pursue it to the end." There was no sign, no movement from it. Waiting for the development of events, it was ever on the watch. If, like Poe's raven, it had uttered but a word, it would have been a relief to me, for nothing could intensify the terror of the dread silence it preserved. There was within me a conviction that a moment would arrive when it would take some action toward the unraveling of the mystery, but in what shape this action would display itself was to me unfathomable. At one o'clock Bob called for me, and I bade Maria good-by. "Now, mind you enjoy yourselves," she said; "and take good care of him, Mr. Millet." "I will do that," said Bob, rather guiltily. He was not an adept in deception, but my wife had no suspicion that we were deceiving her, and we took our departure in peace, each of us provided with a Gladstone bag, Bob's being the bulkier of the two. In mine my wife had placed, in addition to toilet necessaries, two flat bottles, one containing brandy, the other port wine, and the usual packet of sandwiches which the middle-class feminine mind deems a positive essential for a railway journey. Bob had also provided himself with food and liquids, and thus furnished we started upon our expedition.