“When did he last call?” I asked.

“Oh, I should say it ’ud be quite a month ago. ’E always used to arsk for the doctor.”

“Never for Mr Langton?”

“Not to my knowledge. Indeed, one afternoon when ’e called I told ’im that the doctor was out, but that Mr Langton was at ’ome; but ’e told me that ’e wished to see the doctor an’ nobody else.”

“How long has Doctor Flynn lived there?” I inquired.

“About nine months.”

“Does he have many callers?”

“No; they all go round to ’is consulting room in ’Arley Street, I believe.”

“All except Kirk.”

“Yes, Mr Kirk used to call at all hours, and they used to sit together arf through the night sometimes—after Mr Langton ’ad gone to bed. ’E’s never up very late, ’e ain’t.”