“Mrs. Vernon, thoroughly exhausted with irregular living, announced that she was about to resort once more to the healing breezes of the heather-land”—­Mr. Debnam was thoroughly warming to his discourse and thoroughly enjoying his own dusty phrases.

“Interrupting you for a moment,” said the inspector, “at what intervals did these visits take place?”

“At remarkably regular intervals, Inspector:  something like six times a year.”

“For how long had Mrs. Vernon made a custom of these visits?”

“Roughly, for two years.”

“Thank you.  Will you go on, sir?”

“She requested Mr. Vernon, then, on the last occasion to give her a check for eighty pounds; and this he did, unquestioningly.  On Thursday, the second of September, she left for Scotland"...

“Did she take her maid?”

“Her maid always received a holiday on these occasions; Mrs. Vernon wired her respecting the date of her return.”

“Did any one actually see her off?”

“No, not that I am aware of, Inspector.”

“To put the whole thing quite bluntly, Mr. Debnam,” said Dunbar, fixing his tawny eyes upon the solicitor, “Mr. Vernon was thoroughly glad to get rid of her for a week?”

Mr. Debnam shifted uneasily in his chair; the truculent directness of the detective was unpleasing to his tortuous mind.  However:—­

“I fear you have hit upon the truth,” he confessed, “and I must admit that we have no legal evidence of her leaving for Scotland on this, or on any other occasion.  Letters were received from Perth, and letters sent to Auchterander from London were answered.  But the truth, the painful truth came to light, unexpectedly, dramatically, on Monday last"...

“Four days ago?”

“Exactly; three days before the death of my client.”  Mr. Debnam wagged his finger at the inspector again.  “I maintain,” he said, “that this painful discovery, which I am about to mention, precipitated my client’s end; although it is a fact that there was—­hereditary heart trouble.  But I admit that his neglect of his wife (to give it no harsher name) contributed to the catastrophe.”

He paused to give dramatic point to the revelation.

“Walking homeward at a late hour on Monday evening from a flat in Victoria Street—­the flat of—­shall I employ the term a particular friend?—­Mr. Vernon was horrified—­horrified beyond measure, to perceive, in a large and well-appointed car—­a limousine—­his wife!"...

“The inside lights of the car were on, then?”

“No; but the light from a street lamp shone directly into the car.  A temporary block in the traffic compelled the driver of the car, whom my client described to me as an Asiatic—­to pull up for a moment.  There, within a few yards of her husband, Mrs. Vernon reclined in the car—­or rather in the arms of a male companion!”

“What!”