Upstairs Lady Hampshire kept her Agatha-clothes, in which she looked like some unnatural cross between a hospital nurse and the sort of person who gets more stared at than talked to, and when she had found a home for the guileless young carpenter who fashioned her means of communication between Lowndes Square and Whitstaple Street in a remote though salubrious district of Western Australia, it really seemed as if she might laugh at the idea of detectives. She had but to lock herself into her bedroom, and in five minutes Agatha, with her spectacles and rouge and terrible wig, would be firmly conversing with clients in Whitstaple Street. Then, when a pleasant conclusion had been come to, five minutes more would be sufficient, and Lady Hampshire would emerge from her bedroom refreshed by her rest, and ready to immerse herself in a perfect spate of fashionable diversions.

Such to Lady Hampshire’s effusive and optimistic mind was her career as it should have been. But occasionally the hard sordid facts of existence “put spokes” in the wheel that should have whirled so merrily. And as she sat this morning in her elaborate dressing-gown, she found a spoke of the most obstructive kind.

Agatha’s letters had, as usual, been placed outside the door of communication by the terrible Magsby, and Lady Hampshire, on the principle of business first, pleasure afterwards, had answered all the letters sent to herself which dealt with the social pleasures of town before she opened the far more exciting packet of Agatha’s correspondence. The very first of them made her feel as if she had several lowering diseases in the pit of the stomach. It ran thus:

“To Miss Agatha Ainslie.

“Dear Madam,—I have learned your terrible secret, and know the means whereby you acquire your great and ill-gotten wealth. Believe me, my heart bleeds for you that in your position you should ever have had to descend to the crime of blackmailing, which, you are well aware, is regarded in a very serious and perhaps even brutal light by the otherwise humane code of English law.

“Now I make no threats; I studiously avoid them. But if you can help a deserving and struggling individual already past the prime of life, I assure you, on my sacred word of honour, that you will not sleep the less soundly for it. A pittance of £1,000 a year paid quarterly, and in advance, would be considered perfectly satisfactory. My messenger shall call on you this afternoon at a quarter-past three, and I earnestly suggest that the first payment should then and there be given him.—Faithfully yours,

“M. S.”

“P.S.—Motives of delicacy prevent my mentioning my name. A cheque therefore would be less welcome than bank-notes or gold.”

Cynthia Hampshire shuddered as she read. Often and often she had wondered with kindly amazement at the hare-like timidity of her clients, who so willingly paid their little mites to the upkeep of her establishment, when a moment’s courage would have taken them hot-foot to the smiling and hospitable portals of Scotland Yard. But as she perused this perfectly sickening communication, she found herself, in the true sense of the word, sympathizing with them—that is to say, suffering with them. It really was most uncomfortable being blackmailed for something of an illegal nature which you actually had done, and she no longer wondered at the lamb-like acquiescence with which her clients fell in with the not unreasonable terms that she offered them.

The thought of calling at Scotland Yard with this outrageous letter occurred to her, but at the idea of appealing for protection her soul cried out like a child in the dark, and her courage oozed from her like drippings from a squeezed sponge. Furthermore, so spirited a proceeding was rendered even less feasible by the fact that it was not Lady Hampshire who was being blackmailed, but her Agatha. She doubted very much if she would be allowed by the odious meticulosity of English law to prosecute on behalf of poor Miss Ainslie, who must suddenly have gone abroad, while the idea of going to the house of vengeance in the disguise and habiliments of that injured spinster was outside the limits of her sober imagination. And who could M. S. be, with his veiled threats and nauseating denial of them? She ran rapidly through the list of her clients, but found none whom she could reasonably suspect of so treacherous a feat.