Malcolmson felt amazed, and seizing the poker from the hearth ran at it to kill it. Before, however, he could strike it, the rat, with a squeak that sounded like the concentration of hate, jumped upon the floor, and, running up the rope of the alarm bell, disappeared in the darkness beyond the range of the green-shaded lamp. Instantly, strange to say, the noisy scampering of the rats in the wainscot began again.

By this time Malcolmson’s mind was quite off the problem; and as a shrill cock-crow outside told him of the approach of morning, he went to bed and to sleep.

He slept so sound that he was not even waked by Mrs. Dempster coming in to make up his room. It was only when she had tidied up the place and got his breakfast ready and tapped on the screen which closed in his bed that he woke. He was a little tired still after his night’s hard work, but a strong cup of tea soon freshened him up and, taking his book, he went out for his morning walk, bringing with him a few sandwiches lest he should not care to return till dinner time. He found a quiet walk between high elms some way outside the town, and here he spent the greater part of the day studying his Laplace. On his return he looked in to see Mrs. Witham and to thank her for her kindness. When she saw him coming through the diamond-paned bay window of her sanctum she came out to meet him and asked him in. She looked at him searchingly and shook her head as she said:

“You must not overdo it, sir. You are paler this morning than you should be. Too late hours and too hard work on the brain isn’t good for any man! But tell me, sir, how did you pass the night? Well, I hope? But, my heart! sir, I was glad when Mrs. Dempster told me this morning that you were all right and sleeping sound when she went in.”

“Oh, I was all right,” he answered smiling, “the ‘somethings’ didn’t worry me, as yet. Only the rats; and they had a circus, I tell you, all over the place. There was one wicked looking old devil that sat up on my own chair by the fire, and wouldn’t go till I took the poker to him, and then he ran up the rope of the alarm bell and got to somewhere up the wall or the ceiling—I couldn’t see where, it was so dark.”

“Mercy on us,” said Mrs. Witham, “an old devil, and sitting on a chair by the fireside! Take care, sir! take care! There’s many a true word spoken in jest.”

“How do you mean? ’Pon my word I don’t understand.”

“An old devil! The old devil, perhaps. There! sir, you needn’t laugh,” for Malcolmson had broken into a hearty peal. “You young folks thinks it easy to laugh at things that makes older ones shudder. Never mind, sir! never mind! Please God, you’ll laugh all the time. It’s what I wish you myself!” and the good lady beamed all over in sympathy with his enjoyment, her fears gone for a moment.