when, at the very same hour this evening, they both came marching into my consulting-room, just as they had done before.
"'I feel that I owe you a great many apologies for my abrupt departure yesterday, doctor,' said my patient.
"'I confess that I was very much surprised at it,' said I.
"'Well, the fact is,' he remarked, 'that when I recover from these attacks my mind is always very clouded as to all that has gone before. I woke up in a strange room, as it seemed to me, and made my way out into the street in a sort of dazed way when you were absent.'
"'And I,' said the son, 'seeing my father pass the door of the waiting-room, naturally thought that the consultation had come to an end. It was not until we had reached home that I began to realize the true state of affairs.'
"'Well,' said I, laughing, 'there is no harm done except that you puzzled me terribly; so if you, sir, would kindly step into the waiting-room I shall be happy to continue our consultation which was brought to so abrupt an ending.'
"'For half an hour or so I discussed that old gentleman's symptoms with him, and then, having prescribed for him, I saw him go off upon the arm of his son.
"I have told you that Mr. Blessington generally chose this hour of the day for his exercise. He came in shortly afterwards and passed upstairs. An instant later I heard him running down, and he burst into my consulting-room like a man who is mad with panic.
"'Who has been in my room?' he cried.
"'No one,' said I.
"'It's a lie! He yelled. 'Come up and look!'
"I passed over the grossness of his language, as he seemed half out of his mind with fear. When I went upstairs with him he pointed to several footprints upon the light carpet.
"'D'you mean to say those are mine?' he cried.
"They were certainly very much larger than any which he could have made, and were evidently quite fresh. It rained
