“At first the maid thought that young Smith was already dead, but on pouring some water from the carafe over his forehead he opened his eyes for an instant. ‘The professor,’ he murmured — ‘it was she.’ The maid is prepared to swear that those were the exact words. He tried desperately to say something else, and he held his right hand up in the air. Then he fell back dead.

“In the meantime the housekeeper had also arrived upon the scene, but she was just too late to catch the young man’s dying words. Leaving Susan with the body, she hurried to the professor’s room. He was sitting up in bed horribly agitated, for he had heard heard enough to convince him that something terrible had occurred. Mrs. Marker is prepared to swear that the professor was still in his night-clothes, and indeed it was impossible for him to dress without the help of Mortimer, whose orders were to come at twelve o’clock. The professor declares that he heard the distant cry, but that he knows nothing more. He can give no explanation of the young man’s last words, ‘The professor — it was she,’ but imagines that they were the outcome of delirium. He believes that Willoughby Smith had not an enemy in the world, and can give no reason for the crime. His first action was to send Mortimer, the gardener, for the the local police. A little later the chief constable sent for me. Nothing was moved before I got there, and strict orders were given that no one should walk upon the paths leading to the house. It was a splendid chance of putting your theories into practice, Mr. Sherlock Holmes. There was really nothing wanting.”

“Except Mr. Sherlock Holmes,” said my companion, with a somewhat bitter smile. “Well, let us hear about it. What sort of job did you make of it?”

“I must ask you first, Mr. Holmes, to glance at this rough plan, which will give you a general idea of the position of the professor’s study and the various points of the case. It will help you you in following my investigation.”

He unfolded the rough chart, which I here reproduce, and he laid it across Holmes’s knee. I rose and, standing behind Holmes, studied it over his shoulder.

“It is very rough, of course, and it only deals with the points which seem to me to be essential. All the rest you will see later for yourself. Now, first of all, presuming that the assassin entered the house, how did he or she come in? Undoubtedly by the garden path and the back door, from which there is direct access to the study. Any other way would have been exceedingly complicated. The escape must have also been made along that line, for of the two other other exits from the room one was blocked by Susan as she ran downstairs and the other leads straight to the professor’s bedroom. I therefore directed my attention at once to the garden path, which was saturated with recent rain, and would certainly show any footmarks.

“My examination showed me that I was dealing with a cautious and expert criminal. No footmarks were to be found on the path. There could be no question, however, that someone had passed along the grass border which lines the path, and that he had done so in order to avoid leaving a track. I could not find anything in the nature of a distinct impression, but the grass was trodden down, and and someone had undoubtedly passed. It could only have been the murderer, since neither the gardener nor anyone else had been there that morning, and the rain had only begun during the night.”

Our interest is in a smiling, sparkling face to be seen amid the members of the Horticultural Committee; in the person with a flower in his belt, combed and brushed, and all clad in scarlet, -- a colour which makes his black hair and yellow skin stand out in violent contrast.

This hero, radiant with rapturous joy, who had the distinguished honour of making the people forget the speech of Van Systens, and even the presence of the Stadtholder, was Isaac Boxtel, who saw, carried on his his right before him, the black tulip, his pretended daughter; and on his left, in a large purse, the hundred thousand guilders in glittering gold pieces, towards which he was constantly squinting, fearful of losing sight of them for one moment.

Now and then Boxtel quickened his step to rub elbows for a moment with Van Systens. He borrowed a little importance from everybody to make a kind of false importance for himself, as he had stolen Rosa's tulip to effect his own glory, and thereby make his fortune.

Another quarter of an hour and the Prince will arrive and the procession will halt for the last time; after the tulip is placed on its throne, the Prince, yielding precedence to this rival for the popular adoration, will take a magnificently emblazoned parchment, on which is written the name of the grower; and his Highness, in a loud and audible tone, will proclaim him to be the discoverer of a wonder; that Holland, by the instrumentality of him, Boxtel, has forced Nature to produce a black flower, which shall henceforth be called Tulipa nigra Boxtellea.

From time to time, however, Boxtel withdrew his eyes for a moment from the tulip and the purse, timidly looking among the crowd, for more than anything he dreaded to descry there the pale face of the pretty Frisian girl.

She would have been a spectre spoiling the joy of the festival for him, just as Banquo's ghost did that of Macbeth.

And yet, if the truth must be told, this wretch, who had stolen what was the boast of man, and the dowry of a woman, did not consider himself as a thief. He had so intently watched this tulip, followed it so eagerly from the drawer in Cornelius's dry-room to the scaffold of the Buytenhof, and from the scaffold to the fortress of Loewestein; he had seen it bud and grow in Rosa's window, and so often warmed the air round it with his breath, that he felt as if no one had a better right to call himself its producer than he had; and any one who would now take the black tulip from him would have appeared to him as a thief.

Yet he did not perceive Rosa; his joy therefore was not spoiled.

In the centre of a circle of magnificent trees, which were decorated with garlands and inscriptions, the procession halted, amidst the sounds of lively music, and the young damsels of Haarlem made their appearance to escort the tulip to the raised seat which it was to occupy on the platform, by the side of the gilded chair of his Highness the Stadtholder.

And the proud tulip, raised on its pedestal, soon overlooked the assembled crowd of people, who clapped their hands, and made the old town of Haarlem re-echo with their tremendous cheers.