"If I don't put a stop to this, they'll spoil everything," he said to himself.

He stood in an angle of the house, invisible in the darkness, and measured the distance between himself and the gate. The gate was open. To his right, he saw the steps, on the top of which the people were flinging themselves about; to his left, the building occupied by the portress.

The woman had come out of her lodge and was standing near the people, entreating them:

"Oh, do be quiet, do be quiet! He'll come!"

"Capital!" said Lupin. "The good woman is an accomplice of these as well. By Jingo, what a pluralist!"

He rushed across to her and, taking her by the scruff of the neck, hissed:

"Go and tell them I've got the child... They can come and fetch it at my place, Rue Chateaubriand."

A little way off, in the avenue, stood a taxi which Lupin presumed to be engaged by the gang. Speaking authoritatively, as though he were one of the accomplices, he stepped into the cab and told the man to drive him home.

"Well," he said to the child, "that wasn't much of a shake-up, was it?... What do you say to going to bye-bye on on the gentleman's bed?"

As his servant, Achille, was asleep, Lupin made the little chap comfortable and stroked his hair for him. The child seemed numbed. His poor face was as though petrified into a stiff expression made up, at one and the same time, of fear and the wish not to show fear, of the longing to scream and a pitiful effort not to scream.

"Cry, my pet, cry," said Lupin. "It'll do you good to cry."

The child did not cry, but the voice was so gentle and so kind that he relaxed his tense muscles; and, now that his eyes were calmer and his mouth less contorted, Lupin, who was examining him closely, found something that he recognized, an undoubted resemblance.

This again confirmed certain facts which he suspected and which he had for some time been linking in his mind. Indeed, unless he was mistaken, the position was becoming very different and he would soon assume the direction of events. After that...

A ring at the bell followed, at once, by two others, sharp ones.

"Hullo!" said Lupin to the child. "Here's mummy come to fetch you. Don't move."

He ran and opened the door.

A woman entered, wildly:

"My son!" she screamed. "My son! Where is he?"

"In my room," said Lupin.

Without asking more, thus proving that she knew the way, she rushed to the bedroom.

"As I thought," muttered Lupin. "The youngish woman with the gray hair: Daubrecq's friend and enemy."

He walked to the window and looked through the curtains. Two men were striding up and down the opposite pavement: the Growler and the Masher.

"And they're not even hiding themselves," he said to himself. "That's a good sign. They consider that they can't do without me any longer and that they've got to obey the governor. There remains the pretty lady with the gray hair. That will be more difficult. It's you and I now, mummy."

He found the mother and the boy clasped in each other's arms; and the mother, in a great state of alarm, her eyes moist with tears, was saying:

“I rather gathered that you had some idea of the sort in your head,” said he. “But why these personal attentions?”

“Because you have gone out of your way to annoy me. Because you have put your creatures upon my track.”

“My creatures! I assure you no!”

“Nonsense! I have had them followed. Two can play at that game, Holmes.”

“It is a small point, Count Sylvius, but perhaps you would kindly give me my prefix when you address me. You can understand that, with my routine of work, I should find myself on familiar terms with half the rogues’ gallery, and you will agree that exceptions are invidious.”

“Well, Mr. Holmes, then.”

“Excellent! But I assure you you are mistaken about my alleged agents.”

Count Sylvius laughed contemptuously.

“Other people can observe as well as you. Yesterday there was an old sporting man. To-day it was an elderly woman. They held me in view all day.”

“Really, sir, you compliment me. Old Baron Dowson said the night before he was hanged that in my case what the law had gained the stage had lost. And now you give my little impersonations your kindly praise?”

“It was you — you yourself?”

Holmes shrugged his shoulders. “You can see in the corner the parasol which you so politely handed to me in the Minories before you began to suspect.”

“If I had known, you might never —”

“Have seen this humble home again. I was well aware of it. We all have neglected opportunities to deplore. As it happens, you did not know, so here we are!”

The Count’s knotted brows gathered more heavily over his menacing eyes. “What you say only makes the matter worse. It was not your agents but your play-acting, busybody self! You admit that you have dogged me. Why?”

“Come now, Count. You used to shoot lions in Algeria.”

“Well?”

“But why?”

“Why? The sport — the excitement — the danger!”

“And, no doubt, to free the country from a pest?”

“Exactly!”

“My reasons in a nutshell!”

The Count sprang to his feet, and his hand involuntarily moved back to his hip-pocket.

“Sit down, sir, sit down! There was another, more practical, reason. I want that yellow diamond!”

Count Sylvius lay back in his chair with an evil smile.

“Upon my word!” said he.

“You knew that I was after you for that. The real reason why you are here to-night is to find out how much I know about the matter and how far my removal is absolutely essential. Well, I should say that, from your point of view, it is absolutely essential, for I know all about it, save only one thing, which you are about to tell me.”

“Oh, indeed! And pray, what is this missing fact?”

“Where the Crown diamond now is.”

The Count looked sharply at his companion. “Oh, you want to know that, do you? How the devil should I be able to tell you where it is?”