“You had my note, Mr. Holmes?”

“Yes, but it explained nothing.”

“It was too delicate a thing for me to put the details on paper. And too complicated. It was only face to face I could do it.”

“Well, we are at your disposal.”

“First of all, Mr. Holmes, I think that my employer, Sir Robert, has gone mad.”

Holmes raised his eyebrows. “This is Baker Street, not Harley Street,” said he. “But why do you say so?”

“Well, sir, when a man does one queer thing, or two queer things, there may be a meaning to it, but when everything he does is queer, then you begin to wonder. I believe Shoscombe Prince and the Derby have turned his brain.”

“That is a colt you are running?”

“The best in England, Mr. Holmes. I should know, if anyone does. Now, I’ll be plain with you, for I know you are gentlemen of honour and that it won’t go beyond the room. Sir Robert has got to win this Derby. He’s up to the neck, and it‘s his last chance. Everything he could raise or borrow is on the horse — and at fine odds, too! You can get forties now, but it was nearer the hundred when he began to back him.”

“But how is that if the horse is so good?”

“The public don’t know how good he is. Sir Robert has been too clever for the touts. He has the Prince’s half-brother out for spins. You can’t tell ’em apart. But there are are two lengths in a furlong between them when it comes to a gallop. He thinks of nothing but the horse and the race. His whole life is on it. He’s holding off the Jews till then. If the Prince fails him he is done.”

“It seems a rather desperate gamble, but where does the madness come in?”

“Well, first of all, you have only to look at him. I don’t believe he sleeps at night. He is down at the stables at all hours. His eyes are wild. It has all been too much for his nerves. Then there is his conduct to Lady Beatrice!”

“Ah! What is that?”

“They have always been the best of friends. They had the same tastes, the two of them, and she loved the horses as much as he did. Every day at the same hour she would drive down to see them — and, above all, she loved the Prince. He would prick up his ears when he heard the wheels on the gravel, and he would trot out each morning to the carriage to get his lump of sugar. But that’s all over now.”

“Why?”

“Well, she seems to have lost all interest in the horses. For a week now she has driven past the stables with never so much as ‘Good-morning’! ”

“You think there has been a quarrel?”

“And a bitter, savage, spiteful quarrel at that. Why else would he give away her pet spaniel that she loved as if he were her child? He gave it a few days ago to old Barnes, what keeps the Green Dragon, three miles off, at Crendall.”

“That certainly did seem strange.”

"Perhaps I'm in the way?" Lupin suggested.

"Not at all, doctor, not at all," said Daubrecq. "Besides, what I have to say has a certain bearing on your errand." And, into the telephone, "Hullo! M. Prasville?... Ah, it's you, Prasville, old cock!... Why, you seem quite staggered! Yes, you're right, it's an age since you and I met. But, after all, we've never been far away in thought... And I've had plenty of visits from you and your henchmen... In my absence, it's true. Hullo!... What?... Oh, you're in a hurry? I beg your pardon!... So am I, for that matter... Well, to come to the point, there's a little service I want to do you... Wait, can't you, you brute?... You won't regret it... It concerns your renown... Hullo!... Are you listening?... Well, take half-a-dozen men with you... plain-clothes detectives, by preference: you'll find them at the night-office... Jump into a taxi, two taxis, and come along here as fast as you can... I've got a rare quarry for you, old chap. One of the upper ten... a lord, a marquis Napoleon himself... in a word, Arsene Lupin!"

Lupin sprang to his feet. He was prepared for everything but this. Yet something within him stronger than astonishment, an impulse of his whole nature, made him say, with a laugh:

"Oh, well done, well done!"

Daubrecq bowed his head, by way of thanks, and muttered:

"I haven't quite finished... A little patience, if you don't mind." And he continued, "Hullo! Prasville!... No, no, old chap, I'm not humbugging... You'll find Lupin here, with me, in my study... Lupin, who's worrying me like the rest of you... Oh, one more or less makes no difference to me! But, all the same, this one's a bit too pushing. And I am appealing to your sense of kindness. Rid me of the fellow, do... Half-a-dozen of your satellites and the two who are pacing up and down outside my house will be enough... Oh, while you're about it, go up to the third floor and rope in my cook as well... She's the famous Victoire: you know, Master Lupin's old nurse... And, look here, one more tip, to show you how I love you: send a squad of men to the Rue Chateaubriand, at the corner of the Rue Balzac... That's where our national hero lives, under the name of Michel Beaumont... Do you twig, old cockalorum? And now to business. Hustle!"

When Daubrecq turned his head, Lupin was standing up, with clenched fists. His burst of admiration had not survived the rest of the speech and the revelations which Daubrecq had made about Victoire and the flat in the Rue Chateaubriand. The humiliation was too great; and Lupin no longer bothered to play the part of the small general practitioner. He had but one idea in his head: not to give way to the tremendous fit of rage that was urging him to rush at Daubrecq like a bull.

Daubrecq gave the sort of little cluck which, with him, did duty for a laugh. He came waddling up, with his hands in his trouser-pockets, and said, incisively:

"Don't you think that this is all for the best? I've cleared the ground, relieved the situation... At least, we now know where we stand. Lupin versus Daubrecq; and that's all about it. Besides, think of the time saved! Dr. Vernes, the divisional surgeon, would have taken two hours to spin his yarn! Whereas, like this, Master Lupin will be compelled to get his little story told in thirty minutes... unless he wants to get himself collared and his accomplices nabbed. What a shock! What a bolt from the blue! Thirty minutes and not a minute more. In thirty minutes from now, you'll have to clear out, scud away like a hare and beat a disordered retreat. Ha, ha, ha, what fun! I say, Polonius, you really are unlucky, each time you come up against Bibi Daubrecq! For it was you who were hiding behind that curtain, wasn't it, my ill-starred Polonius?"