“I – I was frightened,” she stammered.

“Frightened? Of what?”

“I am engaged to Lord Mountnewte and-”

“And you did not wish him to know that you were accepting the attentions of Mr. Leonard Marvell – was that it? Well,” I added, with involuntary impatience, “what happened after you had supper with Mr. Marvell?”

“Oh! I hope – I hope that nothing happened,” she said through more tears. “We had supper at the Trocadero, and he saw me into my brougham. Suddenly, just as I was driving away, I saw Lord Mountnewte standing quite close to us in the crowd.”

“Did the two men know one another?” I asked.

“No,” replied Miss Fay. “At least, I didn’t think so, but when I looked back through the window of my carriage I saw them standing on the curb talking to each other for a moment, and then walk off together towards Piccadilly Circus. That is the last I have seen of either of them,” continued the little actress with a fresh flood of tears. “Lord Mountnewte hasn’t spoken to me since, and Mr. Marvell has disappeared with my money and my diamonds.”

“Your money and your diamonds?” I gasped in amazement.

“Yes; he told me he was a jeweller, and that my diamonds wanted resetting. He took them with him that evening, for he said that London jewellers were clumsy thieves and that he would love to do the work for me himself. I also gave him two hundred pounds which he said he would want for buying the gold and platinum required for the settings. And now he has disappeared – and my diamonds and my money! Oh! I have been very – very foolish – and-”

Her voice broke down completely. Of course, one often hears of the idiocy of girls giving money and jewels unquestioningly to clever adventurers who know how to trade upon their inordinate vanity. There was, therefore, nothing very out of the way in the story just told me by Miss – er – Lulu Fay, until the moment when Miss Marvell’s quiet voice, with its marked Scotch burr, broke in upon the short silence which had followed the actress’s narrative.

“As I explained to the chief detective inspector at Scotland Yard,” she said calmly, “the story which this young – er – lady tells is only partly true. She may have had supper with Mr. Leonard Marvell on the night of February 3rd, and he may have paid her certain attentions; but he never deceived her by telling her that he was a jeweller, nor did he obtain possession of her diamonds and her money through false statements. My brother was the soul of honour and loyalty. If, for some reason which Miss – er – Lulu Fay chooses to keep secret, he had her jewels and money in his possession on the fatal February 3rd, then I think his disappearance is accounted for. He has been robbed and perhaps murdered.”

Like a true Scotchwoman she did not give way to tears, but even her harsh voice trembled slightly when she thus bore witness to her brother’s honesty, and expressed the fears which assailed her as to his fate.

Imagine my plight! I could ill forgive my dear lady for leaving me in this unpleasant position – a sort of peacemaker between two women who evidently hated one another, and each of whom was trying her best to give the other “the lie direct.”

I ventured to ring for our faithful Jane and to send her with an imploring message to Lady Molly, begging her to come and disentangle the threads of this muddled skein with her clever fingers; but Jane returned with a curt note from my dear lady, telling me not to worry about such a silly case, and to bow the two women out of the flat as soon as possible and then come for a nice walk.

I wore my official manner as well as I could, trying not to betray the “prentice hand. Of course, the interview lasted a great deal longer, and there was considerably more talk than I can tell you of in a brief narrative. But the gist of it all was just as I have said. Miss Lulu Fay stuck to every point of the story which she had originally told Miss Marvell. It was the latter uncompromising lady who had immediately marched the younger woman off to Scotland Yard in order that she might repeat her tale to the police. I did not wonder that the chief promptly referred them both to Lady Molly.

Anyway, I made excellent shorthand notes of the conflicting stories which I heard; and I finally saw, with real relief, the two women walk out of our little front door.

Our fellows at the Yard were abnormally active. It seemed, on the face of it, impossible that a man, healthy, vigorous, and admittedly sober, should vanish in London between Piccadilly Circus and Cromwell Road without leaving the slightest trace of himself or of the valuables said to have been in his possession.

Of course, Lord Mountnewte was closely questioned. He was a young Guardsman of the usual pattern, and, after a great deal of vapid talk which irritated Detective Inspector Saunders not a little, he made the following statement:

“I certainly am acquainted with Miss Lulu Fay. On the night in question I was standing outside the Troc, when I saw this young lady at her own carriage window talking to a tall man in an Inverness cape. She had, earlier in the day, refused my invitation to supper, saying that she was not feeling very well, and would go home directly after the theatre; therefore I felt, naturally, a little vexed. I was just about to hail a taxi, meaning to go on to the club, when, to my intense astonishment, the man in the Inverness cape came up to me and asked me if I could tell him the best way to get back to Cromwell Road.”

“And what did you do?” asked Saunders.

“I walked a few steps with him and put him on his way,” replied Lord Mountnewte, blandly.

In Saunders’s own expressive words, he thought that story “fishy.” He could not imagine the arm of coincidence being quite so long as to cause these two men – who presumably were both in love with the same girl, and who had just met at a moment when one of them was obviously suffering pangs of jealousy – to hold merely a topographical conversation with one another. But it was equally difficult to suppose that the eldest son and heir of the Marquis of Loam should murder a successful rival and then rob him in the streets of London.

Moreover, here came the eternal and unanswerable questions: If Lord Mountnewte had murdered Leonard Marvell, where and how had he done it, and what had he done with the body?

I dare say you are wondering by this time why I have said nothing about the maid, Rosie Campbell.

Well, plenty of very clever people (I mean those who write letters to the papers and give suggestions to every official department in the kingdom) thought that the police ought to keep a very strict eye upon that pretty Scotch lassie. For she was very pretty, and had quaint, demure ways which rendered her singularly attractive, in spite of the fact that, for most masculine tastes, she would have been considered too tall. Of course, Saunders and Danvers kept an eye on her – you may be sure of that – and got a good deal of information about her from the people at the hotel. Most of it, unfortunately, was irrelevant to the case. She was maid-attendant to Miss Marvell, who was feeble in health, and who went out but little. Rosie waited on her master and mistress upstairs, carrying their meals to their private room, and doing their bedrooms. The rest of the day she was fairly free, and was quite sociable downstairs with the hotel staff.

With regard to her movements and actions on that memorable 3rd of February, Saunders – though he worked very hard – could glean but little useful information. You see, in a hotel of that kind, with an average of thirty to forty guests at one time, it is extremely difficult to state positively what any one person did or did not do on that particular day.

Most people at the Scotia remembered that Miss Marvell dined in the table d’hote room on that 3rd of February; this she did about once a fortnight, when her maid had an evening “out.”