Thus Haarlem was thrice given over to rejoicing, for a three-fold celebration was to take place.

In the first place, the black tulip had been produced; secondly, the Prince William of Orange, as a true Hollander, had promised to be present at the ceremony of its inauguration; and, thirdly, it was a point of honour with the States to show to the French, at the conclusion of such a disastrous war as that of 1672, that the flooring of the Batavian Republic was solid enough for its people to dance on it, with the accompaniment of the cannon of their fleets.

The Horticultural Society of Haarlem had shown itself worthy of its fame by giving a hundred thousand guilders for the bulb of a tulip. The town, which did not wish to be outdone, voted a like sum, which was placed in the hands of that notable body to solemnise the auspicious event.

And indeed on the Sunday fixed for this ceremony there was such a stir among the people, and such an enthusiasm among the townsfolk, that even a Frenchman, who laughs at everything at all times, could not have helped admiring the character of those honest Hollanders, who were equally ready to spend their money for the construction of a man-of-war -- that that is to say, for the support of national honour -- as they were to reward the growth of a new flower, destined to bloom for one day, and to serve during that day to divert the ladies, the learned, and the curious.

At the head of the notables and of the Horticultural Committee shone Mynheer van Systens, dressed in his richest habiliments.

The worthy man had done his best to imitate his favourite flower in the sombre and stern elegance of his garments; and we are bound to record, to his honour, that he had perfectly succeeded in his object.

Dark crimson velvet, dark purple silk, and jet-black cloth, with linen of dazzling whiteness, composed the festive dress of the President, who marched at the head of his Committee carrying an enormous nosegay, like that which a hundred and twenty-one years later, Monsieur de Robespierre displayed at the festival of "The Supreme Being."

There was, however, a little difference between the two; very different from the French tribune, whose heart was so full of hatred and ambitious vindictiveness, was the honest President, who carried in his bosom a heart as innocent as the flowers which he held in his hand.

Behind the Committee, who were as gay as a meadow, and as fragrant as a garden in spring, marched the learned societies of the town, the magistrates, the military, the nobles and the boors.

The people, even among the respected republicans of the Seven Provinces, had no place assigned to them in the procession; they merely lined the streets.

This is the place for the multitude, which with true philosophic spirit, waits until the triumphal pageants have passed, to know what to say of them, and sometimes also to know what to do.

This time, however, there was no question either of the triumph of Pompey or of Caesar; neither of the defeat of Mithridates, nor of the conquest of Gaul. The procession was as placid as the passing of a flock of lambs, and as inoffensive as a flight of birds sweeping through the air.

My mind filled with admiration for this extraordinary man.

“You have solved it!” I cried.

“Hardly that, Watson. There are some points which are as dark as ever. But we have so much that it will be our own fault if we cannot get the rest. We will go straight to Whitehall Terrace and bring the matter to a head.”

When we arrived at the residence of the European Secretary it was for Lady Hilda Trelawney Hope that Sherlock Holmes inquired. We were shown into the morning-room.

“Mr. Holmes!” said the lady, and her face was pink with her indignation. “This is surely most unfair and ungenerous upon your part. I desired, as I have explained, to keep my visit to you a secret, lest my husband should think that I was intruding into his affairs. And yet you compromise me by coming here and so showing that there are business relations between us.”

“Unfortunately, madam, I had no possible alternative. I have been commissioned to recover this immensely important paper. I must therefore ask you, madam, to be kind enough to place it in my hands.”

The lady sprang to her feet, with the colour all dashed in an instant from her beautiful face. Her eyes glazed — she tottered — I thought that she would faint. Then with a grand effort she rallied from the shock, and a supreme astonishment and indignation chased every other expression from her features.

“You — you insult me, Mr. Holmes.”

“Come, come, madam, it is useless. Give up the letter.”

She darted to the bell.

“The butler shall show you out.”

“Do not ring, Lady Hilda. If you do, then all my earnest efforts to avoid a scandal will be frustrated. Give up the letter and all will be set right. If you will work with me I can arrange everything. If you work against me I must expose you.”

She stood grandly defiant, a queenly figure, her eyes fixed upon his as if she would read his very soul. Her hand was on the bell, but she had forborne to ring it.

“You are trying to frighten me. It is not a very manly thing, Mr. Holmes, to come here and browbeat a woman. You say that you know something. What is it that you know?”

“Pray sit down, madam. You will hurt yourself there if you fall. I will not speak until you sit down. Thank you.”

“I give you five minutes, Mr. Holmes.”

“One is enough, Lady Hilda. I know of your visit to Eduardo Lucas, of your giving him this document, of your ingenious return to the room last night, and of the manner in which you took the letter from the hiding-place under the carpet.”

She stared at him with an ashen face and gulped twice before she could speak.

“You are mad, Mr. Holmes — you are mad!” she cried, at last.

He drew a small piece of cardboard from his pocket. It was the face of a woman cut out of a portrait.

“I have carried this because I thought it might be useful,” said he. “The policeman has recognized it.”