"Who is he?"
"Haven't an idea. I never saw or heard of him before. We talked a good deal at dessert. He came over from the other side of the table to sit by me, and somehow, in five minutes, we'd got into spiritualism and all that sort of thing. He is evidently a believer in it, calls himself an occultist."
"But do you mean to tell me he said souls could be exchanged at will?
Come, Julian?"
"I won't say that. But he set no limit at all to what can be done. He declares that if people seriously set themselves to develop the latent powers that lie hidden within them, they can do almost anything. Only they must be en rapport. Each must respond closely, definitely, to the other. Now, you and I are as much in sympathy with one another as any two men in London, I suppose."
"Surely!"
"Then half the battle's won—according to Marr."
"You are joking."
"He wasn't. He would declare that, with time and perseverance, we could accomplish an exchange of souls."
Valentine laughed.
"Well, but how?"