"'He looked me full in the face and then burst out laughing.'

"'You must be mad,' he said; 'I dislike unseasonable jokes.'

"'He then went into his bedroom and slammed the door noisily behind him. Half an hour later he had paid the bill, ordered a cab, and gone off with his luggage. He left all your things behind him, madam. Mr. Mainwaring was collected and quiet enough, and seemed quite the gentleman except when he spoke of you; still I don't like the look of affairs at all.'

"I listened to my landlady," continued poor Mrs. Mainwaring, "while she told me this strange and most perplexing story. Then I glanced round the room for confirmation of her words. Yes, my husband and all his belongings had vanished, but my work-basket, my new hat, my mantle, my writing-case, and one or two little garments which I was making for the children, were still scattered about the drawing-room.

"I went into the bedroom and saw the clothes I had left behind me, flung into a heap in a corner of the room.

"TAKE THEM AWAY."

"While I was looking at them in a state of mind almost impossible to describe, my landlady tapped at the door and brought me a note.

"'Under the circumstances, madam,' she said, 'you may like to see this letter. I have just found it, stamped and directed as you see, on the davenport in the drawing-room. I think it is in Mr. Mainwaring's writing.'

"I took it from her and looked at it eagerly. It was addressed in my husband's writing to a Don of the college (Trinity) where he had taken his degree. I did not hesitate to open it. Here it is, Dr. Halifax; you may like to read it. It may possibly help you to throw some light on this awful mystery."