“Oh, forgive me!” said Malcolmson presently. “Don’t think me rude; but the idea was too much for me—that the old devil himself was on the chair last night!” And at the thought he laughed again. Then he went home to dinner. This evening the scampering of the rats began earlier; indeed it had been going on before his arrival, and only ceased whilst his presence by its freshness disturbed them. After dinner he sat by the fire for a while and had a smoke; and then, having cleared his table, began to work as before. Tonight the rats disturbed him more than they had done on the previous night. How they scampered up and down and under and over! How they squeaked, and scratched, and gnawed! How they, getting bolder by degrees, came to the mouths of their holes and to the chinks and cracks and crannies in the wainscoting till their eyes shone like tiny lamps as the firelight rose and fell. But to him, now doubtless accustomed to them, their eyes were not wicked; only their playfulness touched him. Sometimes the boldest of them made sallies out on the floor or along the mouldings of the wainscot. Now and again as they disturbed him Malcolmson made a sound to frighten them, smiting the table with his hand or giving a fierce “Hsh, hsh,” so that they fled straightway to their holes. And so the early part of the night wore on; and despite the noise Malcolmson got more and more immersed in his work. All at once he stopped, as on the previous night, being overcome by a sudden sense of silence. There was not the faintest sound of gnaw, or scratch, or squeak. The silence was as of the grave. He remembered the odd occurrence of the previous night, and instinctively he looked at the chair standing close by the fireside. And then a very odd sensation thrilled through him. There, on the great old high-backed carved oak chair beside the fireplace sat the same enormous rat, steadily glaring at him with baleful eyes. Instinctively he took the nearest thing to his hand, a book of logarithms, and flung it at it. The book was badly aimed and the rat did not stir, so again the poker performance of the previous night was repeated; and again the rat, being closely pursued, fled up the rope of the alarm bell. Strangely too, the departure of this rat was instantly followed by the renewal of the noise made by the general rat community. On this occasion, as on the previous one, Malcolmson could not see at what part of the room the rat disappeared, for the green shade of his lamp left the upper part of the room in darkness, and the fire had burned low.