Downstairs she dined alone in the green-hung dining-room; and she revolved for the twentieth time the thoughts that had been continuously with her since midday, moving before her like a kaleidoscope, incessantly changing their relations, their shapes, and their suggestions.  These tended to form themselves into two main alternative classes.  Either Mr. Cathcart was a harmless fanatic, or he was unusually sharp.  But these again had almost endless subdivisions, for at present she had no idea of what was really in his mind—­as to what his hints meant.  Either this curious old gentleman with shrewd, humorous eyes was entirely wrong, and Laurie was just suffering from a nervous strain, not severe enough to hinder him from reading law in Mr. Morton’s chambers; and this was all the substratum of Mr. Cathcart’s mysteries:  or else Mr. Cathcart was right, and Laurie was in the presence of some danger called insanity which Mr. Cathcart interpreted in some strange fashion she could not understand.  And beneath all this again moved the further questions as to what spiritualism really was—­what it professed to be, or mere superstitious nonsense, or something else.

She was amazed that she had not demanded greater explicitness this morning; but the thing had been so startling, so suggestive at first, so insignificant in its substance, that her ordinary common sense had deserted her.  The old gentleman had come and gone like a wraith, had uttered a few inconclusive sentences, and promised to write, had been disappointed with her at one moment and enthusiastic the next.  Obviously their planes ran neither parallel nor opposing; they cut at unexpected points; and Maggie had no notion as to the direction in which his lay.  All she saw plainly was that there was some point of view other than hers.

So, then, she revolved theories, questioned, argued, doubted with herself.  One thing only emerged—­the old lady’s feverish cold afforded her exactly the opportunity she wished; she could write to Laurie with perfect truthfulness that his mother had taken to her bed, and that she hoped he would come down next week instead of the week after.

After dinner she sat down and wrote it, pausing many times to consider a phrase.

Then she read a little, and soon after ten went upstairs to bed.

III

It was a little before sunset on that day that Mr. James Morton turned down on to the Embankment to walk up to the Westminster underground to take him home.  He was a great man on physical exercise, and it was a matter of principle with him to live far from his work.  As he came down the little passage he found his friend waiting for him, and together they turned up towards where in the distance the Westminster towers rose high and blue against the evening sky.

“Well?” said the old man.

Mr. Morton looked at him with a humorous eye.

“You are a hopeless case,” he said.