And, suddenly, Lupin remembered: two years ago, Prasville and Daubrecq the deputy had had a personal encounter on the Place du Palais-Bourbon. The incident made a great stir at the time. No one knew the cause of it. Prasville had sent his seconds to Daubrecq on the same day; but Daubrecq refused to fight.

A little while later, Prasville was appointed secretary-general.

"Very odd, very odd," said Lupin, who remained plunged in thought, while continuing to observe Prasvile's movements.

At seven o'clock Prasville's group of men moved away a few yards, in the direction of the Avenue Henri-Martin. The door of a small garden on the right of the house opened and Daubrecq appeared. The two detectives followed close behind him and, when he took the Rue-Taitbout train, jumped on after him.

Prasville at once walked across the square and rang the bell. The garden-gate was between the house and the porter's lodge. The portress came and opened it. There was a brief conversation, after which Prasville and his companions were admitted.

"A domiciliary visit," said Lupin. "Secret and illegal. By the strict rules of politeness, I ought to be invited. My presence is indispensable."

Without the least hesitation he went up to the house, the door of which had had not been closed, and, passing in front of the portress, who was casting her eyes outside, he asked, in the hurried tones of a person who is late for an appointment:

"Have the gentlemen come?"

"Yes, you will find them in the study."

His plan was quite simple: if any one met him, he would pretend to be a tradesman. But there was no need for this subterfuge. He was able, after crossing an empty hail, to enter a dining-room which also had no one in it, but which, through the panes of a glass partition that separated the dining-room from the study, afforded him a view of Prasville and his five companions.

Prasville opened all the drawers with the aid of false keys. Next, he examined all the papers, while his companions took down the books from the shelves, shook the pages of each separately and felt inside the bindings.

"Of course, it's a paper they're looking for," said Lupin. "Bank-notes, perhaps... "

Prasville exclaimed:

"Whatrot! We shan't find a thing!"

Yet he obviously did not abandon all hope of discovering what he wanted, for he suddenly seized the four bottles in a liqueur-stand, took out the four stoppers and inspected them.

"Hullo!" thought Lupin. "Now he's going for decanter-stoppers! Then it's not a question of a paper? Well, I give it up."

Prasville next lifted and examined different objects; and he asked:

"How often have you been here?"

"Six times last winter," was the reply.

"And you have searched the house thoroughly?"

"Every one of the rooms, for days at a time, while he was visiting his constituency."

"Still... still ... ." And he added, "Has he no servant at present?"

"No, he is looking for one. He has his meals out and the portress keeps the house as best she can. The woman is devoted to us... "

Mrs. Hudson had come in with a card upon a tray. I took it up and glanced at it.

“Why, here it is!” I cried in amazement. “This is a different initial. John Garrideb, Counsellor at Law, Moorville, Kansas, U. S. A. ”

Holmes smiled as he looked at the card. “I am afraid you must make yet another effort, Watson,” said he. “This gentleman is also in the plot already, though I certainly did not expect to see him this morning. However, he is in a position to tell us a good deal which I want to know.”

A moment later he was in the room. Mr. John Garrideb, Counsellor at Law, was a short, powerful man with the round, fresh, clean-shaven face characteristic of so many American men of affairs. The general effect was chubby and rather childlike, so that one received the impression of quite a young man with a broad set smile upon his face. His eyes, however, were arresting. Seldom in any human head have I seen a pair which bespoke a more intense inward life, so bright were they, so alert, so responsive to every change of thought. His accent was American, but was not accompanied by any eccentricity of speech.

“Mr. Holmes?” he asked, glancing from one to the other. “Ah, yes! Your pictures are not unlike you, sir, if I may say so. I believe you have had a letter from my namesake, Mr. Nathan Garrideb, have you not?”

“Pray sit down,” said Sherlock Holmes. “We shall, I fancy, have a good deal to discuss.” He took up his sheets of foolscap. “You are, of course, the Mr. John Garrideb mentioned in this document. But surely you have been in England some time?”

“Why do you say that, Mr. Holmes?” I seemed to read sudden suspicion in those expressive eyes.

“Your whole outfit is English.”

Mr. Garrideb forced a laugh. “I’ve read of your tricks, Mr. Holmes, but I never thought I would be the subject of them. Where do you read that?”

“The shoulder cut of your coat, the toes of your boots — could anyone doubt it?”

“Well, well, I had no idea I was so obvious a Britisher. But business brought me over here some time ago, and so, as you say, my outfit is nearly all London. However, I guess your time is of value, and we did not meet to talk about the cut of my socks. What about getting down to that paper you hold in your hand?”

Holmes had in some way ruffled our visitor, whose chubby face had assumed a far less amiable expression.

“Patience! Patience, Mr. Garrideb!” said my friend in a soothing voice. “Dr. Watson would tell you that these little digressions of mine sometimes prove in the end to have some bearing on the matter. But why did Mr. Nathan Garrideb not come with you?”

“Why did he ever drag you into it at all?” asked our visitor with a sudden outflame of anger. “What in thunder had you to do with it? Here was a bit of professional business between two gentlemen, and one of them must needs call in a detective! I saw him this morning, and he told me this fool-trick he had played me, and that’s why I am here. But I feel bad about it, all the same.”