"Well, the spiritualist theory seems to me simple R.-O.-T.--rot. Mr. Vincent, Mrs. Stapleton, and the rest, really think that the souls of people actually come back and do these things; that it was, really and truly, poor dear Amy Nugent who led Laurie such a dance. I'm quite, quite certain that that's not true whatever else is.... Yes, I'll come to the coincidences presently. But how can it possibly be that Amy should come back and do these things, and hurt Laurie so horribly? Why, she couldn't if she tried. My dear, to be quite frank, she was a very common little thing: and, besides, she wouldn't have hurt a hair of his head. "Now for Mr. Cathcart." There was a long pause. A small cat stepped out suddenly from the hazel tangle behind and eyed the two girls. Then, quite noiselessly, as it caught Maggie's eye, it opened its mouth in a pathetic curve intended to represent, an appeal. "You darling!" cried Maggie suddenly; seized a saucer, filled it with milk, and set it on the ground. The small cat stepped daintily down, and set to work. "Yes?" said the other girl tentatively. "Oh! Mr. Cathcart.... Well, I must say that his theory fits in with what Father Mahon says. But, you know, theology doesn't say that this or that particular thing is the devil, or has actually happened in any given instance--only that, if it really does happen, it is the devil. Well, this is Mr. Cathcart's idea. It's a long story: you mustn't mind. "First, he believes in the devil in quite an extraordinary way.... Oh! yes, I know we do too; but it's so very real indeed with him. He believes that the air is simply thick with them, all doing their very utmost to get hold of human beings. Yes, I suppose we do believe that too; but I expect that since there are such a quantity of things--like bad dreams--that we used to think were the devil, and now only turn out to be indigestion, that we're rather too skeptical. Well, Mr. Cathcart believes both in indigestion, so to speak, _and_ the devil. He believes that those evil spirits are at us all the time, trying to get in at any crack they can find--that in one person they produce lunacy--I must say it seems to me rather odd the way in which lunatics so very often become horribly blasphemous and things like that--and in another just shattered nerves, and so on. They take advantage, he says, of any weak spot anywhere.