The smile that played on Mr. Pickwick’s features was instantaneously lost in a look of the most unbounded and wonder-stricken surprise. The person, whoever it was, had come in so suddenly and with so little noise, that Mr. Pickwick had had no time to call out, or oppose their entrance. Who could it be? A robber? Some evil-minded person who had seen him come upstairs with a handsome watch in his hand, perhaps. What was he to do? The only way in which Mr. Pickwick could catch a glimpse of his mysterious visitor with the least danger of being seen himself, was by creeping on to the bed, and peeping out from between the curtains on the opposite side. To this manoeuvre he accordingly resorted. Keeping the curtains carefully closed with his hand, so that nothing more of him could be seen than his face and nightcap, and putting on his spectacles, he mustered up courage and looked out. Mr. Pickwick almost fainted with horror and dismay. Standing before the dressing-glass was a middle-aged lady, in yellow curl-papers, busily engaged in brushing what ladies call their ‘back-hair.’ However the unconscious middle-aged lady came into that room, it was quite clear that she contemplated remaining there for the night; for she had brought a rushlight and shade with her, which, with praiseworthy precaution against fire, she had stationed in a basin on the floor, where it was glimmering away, like a gigantic lighthouse in a particularly small piece of water. ‘Bless my soul!’ thought Mr. Pickwick, ‘what a dreadful thing!’ ‘Hem!’ said the lady; and in went Mr. Pickwick’s head with automaton- like rapidity. ‘I never met with anything so awful as this,’ thought poor Mr. Pickwick, the cold perspiration starting in drops upon his nightcap. ‘Never. This is fearful.’ It was quite impossible to resist the urgent desire to see what was going forward. So out went Mr. Pickwick’s head again. The prospect was worse than before. The middle-aged lady had finished arranging her hair; had carefully enveloped it in a muslin nightcap with a small plaited border; and was gazing pensively on the fire. ‘This matter is growing alarming,’ reasoned Mr. Pickwick with himself. ‘I can’t allow things to go on in this way. By the self-possession of that lady, it is clear to me that I must have come into the wrong room. If I call out she’ll alarm the house; but if I remain here the consequences will be still more frightful.’ Mr. Pickwick, it is quite unnecessary to say, was one of the most modest and delicate-minded of mortals. The very idea of exhibiting his nightcap to a lady overpowered him, but he had tied those confounded strings in a knot, and, do what he would, he couldn’t get it off. The disclosure must be made. There was only one other way of doing it. He shrunk behind the curtains, and called out very loudly-- ‘Ha-hum!’