sented by an S with two lines through it-the sign for a dollar, also by two stripes and a star. It may be conjectured therefore that he is an American subject, and that he represents the power of wealth.' Add to those words the fact that Ryland offered me a huge sum to tempt me out of England-and-and what about it, Hastings?"

"You mean," I said, staring, "that you suspect Abe Ryland, the multi-millionaire, of being Number Two of the Big Four."

"Your bright intellect has grasped the idea, Hastings.

Yes, I do. The tone in which you said multimillionaire was eloquent-but let me impress upon you one fact-this thing is being run by men at the top-and Mr.

Ryland has the reputation of being no beauty in his business dealings. An able, unscrupulous man, a man who has all the wealth that he needs, and is out for unlimited power."

There was undoubtedly something to be said for Poirot's view. I asked him when he had made up his mind definitely upon the point.

"That is just it. I am not sure. I cannot be sure. Mon ami, I would give anything to know. Let me but place Number Two definitely as Abe Ryland, and we draw nearer to our goal." hi "He has just arrived in London, I see by this," I said, tapping the letter. "Shall you call upon him, and make your apologies in person?"

"I might do so."

Two days later, Poirot returned to our rooms in a state of boundless excitement. He grasped me by both hands in his most impulsive manner.

"My friend, an occasion stupendous, unprecedented, never to be repeated, has presented itself! But there is danger, grave danger. I should not even ask you to attempt it."

If Poirot was trying to frighten me, he was going the wrong way to work, and so I told him. Becoming less incoherent, he unfolded his plan.

It seemed that Ryland was looking for an English secretary, one with a good social manner and presence.

It was Poirot's suggestion that I should apply for the post.

"I would do it, myself, mon ami," he explained apologetically. "But, see you, it is almost impossible for me to disguise myself in the needful manner. I speak the English very well-except when I am excited-but hardly so as to deceive the ear; and even though I were to sacrifice my moustaches, I doubt not but that I should still be recognisable as Hercule Poirot."

I doubted it also, and declared myself ready and willing to take up the part and penetrate into Ryland's household.

"Ten to one he won't engage me anyway," I remarked.

"Oh, yes, he will. I will arrange for you such testimonials as shall make him lick his lips. The Home Secretary himself shall recommend you."

This seemed to be carrying things a bit far, but Poirot waved aside my remonstrances.

"Oh, yes, he will do it. I investigated for him a little matter which might have caused a grave scandal. All was solved with discretion and delicacy, and now, as you would say, he perches upon my hand like the little bird and pecks the crumbs."

Our first step was to engage the services of an artist in "make-up." He was a little man, with a quaint birdlike turn of the head, not unlike Poirot's own. He considered me some time in silence, and then fell to work.

When I looked at myself in the glass half an hour afterwards, I was amazed. Special shoes caused me to stand '6 Agatha Christie at least two inches taller, and the coat I wore was arranged so as to give me a long, lank, weedy look. m} eyebrows had been cunningly altered, giving a totally different expression to my face, I wore pads in m} cheeks, and the deep tan of my face was a thing of the past. My moustache had gone, and a gold tooth wa; prominent on one side of my mouth.

"Your name," said Poirot, "is Arthur Neville. Goc guard you, my friend-for I fear that you go intc perilous places."

It was with a beating heart that I presented myself a the Savoy, at an hour named by Mr. Ryland, and askec to see the great man.

After being kept waiting a minute or two, I was shown upstairs to his suite.

Ryland was sitting at a table. Spread out in front o; him was a letter which I could see out of the tail of m] eye was in the Home Secretary's handwriting. It was m; first sight of the American millionaire, and, in spite o: myself, I was impressed. He was tall and lean, with « jutting out chin and slightly hooked nose. His eyes glit tered cold and gray behind penthouse brows. He hac thick grizzled hair, and a long black cigar (withou which, I learned later, he was never seen) protruded rak ishly from the corner of his mouth.

"Siddown," he grunted.

I sat. He tapped the letter in front of him.

"According to this piece here, you're the goods al right, and I don't need to look further. Say, are you wel up in the social matters?"

I said that I thought I could satisfy him in tha respect.

"I mean to say, if I have a lot of dooks and earls ai viscounts and suchlike down to the country place I' ' gotten, you'll be able to sort them out all right and p'i them where they should be round the dining table?"

"Oh! quite easily," I replied, smiling.

We exchanged a few more preliminaries, and then I found myself engaged. What Mr. Ryland wanted was a secretary conversant with English society, as he already had an American secretary and a stenographer with him.

Two days later I went down to Hatton Chase, the seat of the Duke of Loamshire, which the American millionaire had rented for a period of six months.

My duties gave me no difficulty whatever. At one period of my life I had been private secretary to a busy member of Parliament, so I was not called upon to assume a role unfamiliar to me. Mr. Ryland usually entertained a large party over the week-end, but the middle of the week was comparatively quiet. I saw very little of Mr. Appleby, the American secretary, but he seemed a pleasant, normal young American, very efficient in his work. Of Miss Martin, the stenographer, I saw rather more. She was a pretty girl of about twentythree or four, with auburn hair and brown eyes that could look mischievous enough upon occasion, though they were usually cast demurely down. I had an idea that she both disliked and distrusted her employer, though, of course, she was careful never to hint at anything of the kind, but the time came when I was unexpectedly taken into her confidence.

I had, of course, carefully scrutinised all the members of the household. One or two of the servants had been newly engaged, one of the footmen, I think, and some of the housemaids. The butler, the housekeeper, and the chef were the duke's own staff, who had consented to remain on in the establishment. The housemaids I dismissed as unimportant; I scrutinised James, the second footman, very carefully; but it was clear that he was an under-footman and an under-footman only. He had, indeed, been engaged by the butler. A person of whom I was far more suspicious was Deaves, Ryland's valet, whom he had brought over from New York with him.

An Englishman by birth, with an irreproachable manner, I yet harboured vague suspicions about him.

I had been at Hatton Chase three weeks, and not an incident of any kind had arisen which I could lay my finger on in support of our theory. There was no trace of the activities of the Big Four. Mr. Ryland was a man of overpowering force and personality, but I was coming to believe that Poirot had made a mistake when he associated him with that dread organisation. I even heard him mention Poirot in a casual way at dinner one night.

"Wonderful little man, they say. But he's a quitter.

How do I know? I put him on a deal, and he turned me down the last minute. I'm not taking any more of your Monsieur Hercule Poirot."

It was at moments such as these that I felt my cheek pads most wearisome!

And then Miss Martin told me a rather curious story.