"Very odd!" he muttered.
A calendar hanging on the wall reminded him that it was the first of the month.
The days passed, the incident faded from his memory, and four weeks later he came down one morning to breakfast in an unusually good temper. There was a certain theory he had worked on the night before he meant to write to a friend about. It seemed to him his demonstration had been really brilliant, and then, also, he was already planning out with great success the details of the scheme for his great work.
He was making an excellent breakfast, for his appetite was always good, and, needing some more cream, he rang the bell. The maid appeared, he showed her the empty jug, and as she took it she dropped it with a sudden cry, smashing it to pieces on the floor. Very pale, she stammered out:
"Beg pardon, sir, your hand—there is blood upon your hand."
In fact, on the Professor's right hand there showed a drop of blood, perceptibly larger this time than before. The Professor stared at it stupidly. He was sure it had not been there a moment before, and he noticed by the heading of the newspaper at the side of his plate that this was the first of the month.
With a hasty movement of his napkin he wiped the drop of blood away. The maid, still apologising, began to pick up the pieces of the jug she had broken; but the Professor had no further appetite for his breakfast. He silenced her with a gesture, and, leaving a piece of toast half-eaten on his plate, he got up and went into his study.
All this was trivial, absurd even. Yet somehow it disturbed him. He got out a magnifying glass and examined his hand under it. There was nothing to account for the presence of the drop of blood he and the maid had seen. It occurred to him that he might have cut himself in shaving; but when he looked in the mirror he could find no trace of even the slightest wound.
He decided that, though he had not been aware of it, his nerves must be a little out of order. That was disconcerting. He had not taken his nerves into consideration for the simple reason that he had never known that he possessed any. He made up his mind to treat himself to a holiday in Switzerland. One or two difficult ascents might brace him up a bit.
Three days later he was in Switzerland, and a few days later again he was on the summit of a minor but still difficult peak. It had been an exhilarating climb, and he had enjoyed it. He said something laughingly to the head guide to the effect that climbing was good sport and a fine test for the nerves. The head guide agreed, and added politely that if the nerves of monsieur the Professor had shown signs of failing on the lower glacier, for example, they might all have been in difficulties. The Professor thrilled with pleasure at the head guide's implied praise. He was glad to know on such good authority that his nerves were all right, and the incidents that had driven him there began to fade in his memory.