Other reservations must be made. All results that can conceivably be accounted for by such well-established phenomena as telepathy or thought-reading must be unhesitatingly ruled out. They are deeply interesting in themselves, they are like the traces of other metals discovered in exploring a gold-reef, but they are not the gold, and have no more to do with the thing inquirers are in quest of than have acid-drops or penny buns. Many mediums (so-called) are not mediums at all, but have that strange and marvellous gift of being able to explore the minds of others....

What is the working and mechanism of that group of phenomena, among which we may class hypnotism, thought-reading, telepathy, and so forth, we do not rightly know. But inside the conscious self of every human being there lurks the sub-conscious or subliminal self, which has something to do with all these things. Every event that happens to a man, every thought that passes through his mind, every impression that his brain receives makes a mark on it, similar, perhaps, to the minute dots on phonograph records. That phonograph record (probably) is in the keeping of the sub-conscious mind, and though the conscious mind may have forgotten the fact, and the circumstances in the making of any of these marks, the sub-conscious mind has it recorded, and, under certain conditions, can produce it again. And it is the sub-conscious mind which without doubt exercises those thought-reading and telepathic functions. In most people it lies practically inaccessible; others, numerically few, appear, in trance or even without the suspension of the conscious mind, to be able to exercise its powers, and—leaving out the mere conjuring tricks of fraudulent persons—it is they who pass for mediums.

What happens? This: A bereaved mother or a bereaved wife sits with one of those mediums. The medium goes into a genuine trance, and probing the mind of the eager expectant sitter, can tell her all sorts of intimate details about the husband or son who has been killed which are already known to her. The medium can produce his name, his appearance; can recount events and happenings of his childhood; can even say things which the mother has forgotten, but which prove to be true. Is it any wonder that the sitter is immensely impressed? She is more than impressed, she is consoled and comforted when the medium proceeds to add (still not quite fraudulently) messages of love and assurance of well-being. It is not quite conscious fraud; it is perhaps a fraud of the sub-conscious mind.

Now all this, these reminiscences, these encouraging messages from the other world, have to be ruled out if we want to get at the real thing. They are phenomena vastly interesting in themselves, but they are clearly accountable for by the established theory of thought-reading. They need have nothing whatever to do with communications from discarnate spirits, for they can be accounted for by a natural law already known to us. They do not help in the slightest degree to establish the new knowledge for which so many are searching....

Francis had come back from his lunch and his séance with Aunt Aggie, and a considerable part of these reflections are really a précis of our discussion. It had been quite a good thought-reading séance: Uncle Willy, through the mouth of the medium in trance, had affirmed his dislike of parsnips and mushrooms, had mentioned his name, and nickname, Puffin, by which Aunt Aggie had known him, and had described with extraordinary precision the room where he used to sit.

"I was rather impressed," said Francis. "It really was queer, for silly though Aunt Aggie is, I don't think she had previously gone to Amber—yes, the medium was Amber, just Amber—and primed her with regard to this information. Amber read it all right out of Aunt Aggie's mind. But then Uncle Willy became so extremely unlike himself that I couldn't possibly believe it was Uncle Willy; it must have been a sort of reflection of what Aunt Aggie hoped he had become. He was deeply edifying; he said he was learning to be patient; he told us that he had improved wonderfully. Poor Aunt Aggie sobbed, and I knew she loved sobbing. It made her feel good inside. All the same——" He let himself lie inertly on the sofa, in that supreme bodily laziness which, as I have said, gives his mind the greater activity.

"It was all a thought-reading séance," he said, "quite good of its kind, but it had no more to do with the other world than Matilda.... But why shouldn't there be a way through between the material and the spiritual, just as there is a way for telegraphy, as you said, without wires? Ninety-nine times out of a hundred, no doubt, a so-called message from the other side is only a subtle intercommunication between minds on this side. It's so hard to guard against that. But it might be done. We might think of some piece of knowledge known only to a fellow who was dead."

Suddenly he jumped up.

"I've thought of a lovely plan," he said. "Go for a walk, if you haven't been out all day, or go and have a bath or something; and while you are gone I'll prepare a packet, and seal it up in a box. Nobody will know but me. And then when the next bit of shrapnel comes along and hits me instead of the potted-meat tin, you will pay half-a-guinea, I think it is—I know I paid for Aunt Aggie and myself—and see if a medium can tell you what is in that box. Nobody will know except me, and I shall be dead, so it really will look very much as if I had a hand in it if a medium in trance can tell you what is in it. A box can't telepathize, can it? The Roman Catholics say it's devil-work to communicate with the dead; they say all sorts of foul spirits get hold of the other end of the telephone. Isn't it lucky we aren't Roman Catholics?"

"And what about the War Office?" I said, chiefly because I didn't want either to go out or have a bath.