“Over the stables.”
“We might possibly want him. Well, we can do no more until we see how things develop. Goodbye—but I expect that we shall see you before morning.”
It was nearly midnight before we took our station among some bushes immediately opposite the hall door of the professor. It was a fine night, but chilly, and we were glad of our warm overcoats. There was a breeze, and clouds were scudding across the sky, obscuring from time to time the half-moon. It would have been a dismal vigil were it not for the expectation and excitement which carried us along, and the assurance of my comrade that we had probably reached the end of the strange sequence of events which had engaged our attention.
“If the cycle of nine days holds good then we shall have the professor at his worst tonight,” said Holmes. “The fact that these strange symptoms began after his visit to Prague, that he is in secret correspondence with a Bohemian dealer in London, who presumably represents someone in Prague, and that he received a packet from him this very day, all point in one direction. What he takes and why he takes it are still beyond our ken, but that it emanates in some way from Prague is clear enough. He takes it under definite directions which regulate this ninth-day system, which was the first point which attracted my attention. But his symptoms are most remarkable. Did you observe his knuckles?”
I had to confess that I did not.
“Thick and horny in a way which is quite new in my experience. Always look at the hands first, Watson. Then cuffs, trouserknees, and boots. Very curious knuckles which can only be explained by the mode of progression observed by—” Holmes paused and suddenly clapped his hand to his forehead. “Oh, Watson, Watson, what a fool I have been! It seems incredible, and yet it must be true. All points in one direction.