The road through the river-valley was little used, and nobody came to interrupt the work. The night was dark, the sky heavy with moveless clouds.

Lupin gave the Masher and the Growler their final instructions and said, with a laugh:

"I can't tell you how amused I am at the thought of seeing Daubrecq's face when they proceed to take his scalp or slice his skin into ribbons. Upon my word, it's worth the journey."

Clarisse also had taken a seat in the boat. He said to her:

"Until we meet again. And, above all, don't stir. Whatever happens, not a movement, not a cry."

"Can anything happen?" she asked.

"Why, remember the Sire de Tancarville! It was at the very moment when he was achieving his object, with his true love in his arms, that an accident betrayed him. But be easy: I shall be all right."

She made no reply. She seized his hand and grasped it warmly between her own.

He put his foot on the ladder and made sure that it did not sway too much. Then he he went up.

He soon reached the top rung.

This was where the dangerous ascent began, a difficult ascent at the start, because of the excessive steepness, and developing, mid-way, into an absolute escalade.

Fortunately, here and there were little hollows, in which his feet found a resting-place, and projecting stones, to which his hands clung. But twice those stones gave way and he slipped; and twice he firmly believed that all was lost. Finding a deeper hollow, he took a rest. He was worn out, felt quite ready to throw up the enterprise, asked himself if it was really worth while for him to expose himself to such danger:

"I say!" he thought. "Seems to me you're showing the white feather, Lupin, old boy. Throw up the enterprise? Then Daubrecq will babble his secret, the marquis will possess himself of the list, Lupin will return empty-handed, and Gilbert... "

The long rope which he had fastened round his waist caused him needless inconvenience and fatigue. He fixed one of the ends to the strap of his trousers and let the rope uncoil uncoil all the way down the ascent, so that he could use it, on returning, as a hand-rail.

Then he once more clutched at the rough surface of the cliff and continued the climb, with bruised nails and bleeding fingers. At every moment he expected the inevitable fall. And what discouraged him most was to hear the murmur of voices rising from the boat, murmur so distinct that it seemed as though he were not increasing the distance between his companions and himself.

And he remembered the Sire de Tancarville, alone, he too, amid the darkness, who must have shivered at the noise of the stones which he loosened and sent bounding down the cliff. How the least sound reverberated through the silence! If one of Daubrecq's guards was peering into the gloom from the Lovers' Tower, it meant a shot... and death.

And he climbed... he climbed... He had climbed so long that he ended by imagining that the goal was passed. Beyond a doubt, he had slanted unawares to the right or left and he would finish at the patrol-path. What a stupid upshot! And what other upshot could there be to an attempt which the swift force of events had not allowed him to study and prepare?

“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 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.”