“But, Miss Deveen, what is she searching for?”

“I know. I see it all perfectly. It is for a bank-note.”

“But—if she is really asleep, how can she go about the search in that systematic way? Her eyes are wide open: she seems to examine things as though she saw them.”

“I cannot tell you how it is, Johnny. They do seem to see things, though they are asleep. What’s more, when they awake there remains no consciousness of what they have done. This is not the first case of somnambulism I have been an eye-witness to. She throws the window and shutters open to admit the light.”

“How can she have sense to know in her sleep that opening them will admit it?”

“Johnny, though these things are, I cannot explain them. Go up to your bed now and get to sleep. As I shall go to mine. You shall know about Janet in the morning. She will take no harm if left alone: she has taken none hitherto. Say nothing to any one.”

It was the solution of the great puzzle. Janet Carey had done it all in her sleep. And what she had been searching for was a bank-note.

In the situation where Janet had been living as nursery-governess, a bank-note had disappeared. Janet was suspected and accused of taking it. Constitutionally timid and nervous, her spirits long depressed by circumstances, the accusation had a grave effect upon her. She searched the house for it incessantly, almost night and day, just as we had seen her searching the parlour at Miss Deveen’s in her sleep, and then fell into a fever—which was only saved by great care from settling on the brain. When well enough, Miss Cattledon had her removed to London to Miss Deveen’s; but the stigma still clung to her, and the incipient fever seemed still to hover about her. The day William Whitney left, she moved from Miss Cattledon’s chamber to the one he had occupied: and that night, being unrestrained, she went down in her sleep to search. The situation of the room in which the note had been lost was precisely similar to this breakfast-room at Miss Deveen’s—in her troubled sleep, poor girl, she must have taken it for the same room, and crept down, still asleep, to renew the endless search she had formerly made when awake. The night the policeman was watching in the summer-house, Lettice sat up with Janet; so that night nothing occurred. Lettice said afterwards that Miss Carey twice got out of bed in her sleep and seemed to be making for the door, but Lettice guided her back to bed again. And so there was the elucidation: and Janet was just as unconscious of what she had done as the bed-post.

Miss Deveen’s medical man was called in, for brain-fever, escaped, appeared to be fastening on Janet in earnest now. He gave it as his opinion that she was no natural sleep-walker, but that the mind’s disturbance had so acted on the brain and system, coupled with her fright at meeting the policeman at the Colosseum, as to have induced the result. At any rate, whatever may have caused it, and strange though it was, I have only given facts. And in the next paper we shall hear more about the bank-note.