"I have been troubled in my mind since then," he said, "because I was told afterwards that I had made a mistake about the proper dose. If you try the cio-root, don't take half an inch, as I recommended, but quarter of an inch. Don't forget. It is of vital importance."
Then he jumped into his 'bus, but I called after him, "What would be the effect of half an inch?"
"Certain death!" he shouted back, and was gone. I turned to look at Montgomery and his wife. She let her umbrella fall and he had turned white. "Of course, there is nothing to be alarmed about," I said, in a reassuring way. "Montgomery has taken half an inch scores of times; you say it always cured you."
"Yes, yes," Montgomery answered; but his voice sounded hollow.
Up to this point the snow had kept off, but now it began to fall in a soaking drizzle. If you are superstitious you can take this as an omen. For the rest of the day, certainly, we had a miserable time of it. I had to do all the talking, and while I laughed and jested, I noticed that Mrs. Montgomery was looking anxiously from time to time at her husband. She was afraid to ask him if he felt unwell, and he kept up, not wanting to alarm her. But he walked like a man who knew that he had come to his last page. At my suggestion we went to the Enoch's Station Hotel to have dinner. I had dinner, Mrs. Montgomery pretended to have dinner, but Montgomery himself did not even make the pretense. He sat with his elbows on the table and his face buried in his hands. At last he said with a groan that he was feeling very ill. He looked so doleful that his wife began to cry.
Montgomery admitted that he blamed the cio-root for his sufferings. He had taken an overdose of it, he said, tragically, and must abide the consequences. I could have shaken him, for reasoning was quite flung away on him. Of course, I repeated what I had said previously about an overdose having done him no harm before, but he only shook his head sadly. I said that his behavior now proved my contention that he only believed in the cio-root because he was told that it had wonderful properties; otherwise he would have laughed at what his friend had just told him. Undoubtedly, I said, his sufferings to-day were purely imaginary. Montgomery did not have sufficient spirits to argue with me, but he murmured in a die-away voice that he had felt strange symptoms ever since we set out from Edinburgh. Now, this was as absurd as anything in Euclid, for he had been boasting of the wonderful cure the drug had effected again most of the way between Edinburgh and Glasgow. He insisted that he had a splitting headache, and that he was very sick. In the end, as his wife was now in a frenzy, I sent out for a doctor. The doctor came, said "yes" and "quite so" to himself, and pronounced Montgomery feverish. That he was feverish by this time, I do not question. He had worked himself into a fever. There was some talk of putting him to bed in the hotel, but he insisted on going home. Though he did not put it so plainly, he gave us to understand that he wanted to die in his own bed.
Never was there a more miserable trio than we in a railway carriage. We got a compartment to ourselves, for though several passengers opened the door to come in, they shrank back as soon as they saw Montgomery's ghastly face. He lay in a corner of the carriage, with his head done up in flannel, procured at the hotel. He had the rugs and my great coat over his legs, but he shivered despite them, and when he spoke at all, except to say that he was feeling worse every minute, it was to talk of men cut off in their prime and widows left destitute. At Mrs. Montgomery's wish, I telegraphed from a station at which the train stopped to the family doctor in Edinburgh, asking him to meet us at the house. He did so; indeed, he was on the steps to help Montgomery up them. We took an arm of the invalid apiece, and dragged him into the library.
It was a fortunate thing that we went into the library, for the first thing Montgomery saw on the table was the half inch of cio-root which he thought had killed him. He had forgotten to take it.
In ten minutes he was all right. Just as we were sitting down to supper, we heard a cat squalling outside. Montgomery flung a three-pound tin of the cio-root at it.