“The absence of the latter means nothing, though its presence may mean everything,” said Holmes. “Unless the powder from a badly fitting cartridge happens to spurt backward, one may fire many shots without leaving a sign. I would suggest that Mr. Cubitt’s body may now be removed. I suppose, Doctor, you have not recovered the bullet which wounded the lady?”

“A serious operation will be necessary before that can be done. But there are still four cartridges in the revolver. Two have been fired and two wounds inflicted, so that each bullet can be accounted for.”

“So it would seem,” said Holmes. “Perhaps you can account also for the bullet which has so obviously struck the edge of the window?”

He had turned suddenly, and his long, thin finger was pointing to a hole which had been drilled right through the lower window-sash, about an inch above the bottom.

“By George!” cried the inspector. “How ever did you see that?”

“Because I looked for it.”

“Wonderful!” said the country doctor. “You are certainly right, sir. Then a third shot has been fired, and therefore a third person must have been present. But who could that have been, and how could he have got away?”

“That is the problem which we are now about to solve,” said Sherlock Holmes. “You remember, Inspector Martin, when the servants said that on leaving their room they were at once conscious of a smell of powder, I remarked that the point was an an extremely important one?”

“Yes, sir; but I confess I did not quite follow you.”

“It suggested that at the time of the firing, the window as well as the door of the room had been open. Otherwise the fumes of powder could not have been blown so rapidly through the house. A draught in the room was necessary for that. Both door and window were only open for a very short time, however.”

“How do you prove that?”

“Because the candle was not guttered.”

“Capital!” cried the inspector. “Capital!”

“Feeling sure that the window had been open at the time of the tragedy, I conceived that there might have been a third person in the affair, who stood outside this opening and fired through it. Any shot directed at this person might hit the sash. I looked, and there, sure enough, was the bullet mark!”

“But how came the window to be shut and fastened?”

“The woman’s first instinct would be to shut and fasten the window. But, halloa! what is this?”

It was a lady’s hand-bag which stood upon the study table — a trim little handbag of crocodile-skin and silver. Holmes opened it and turned the contents out. There were twenty fifty-pound notes of the Bank of England, held together by an india-rubber band — nothing else.

“This must be preserved, for it will figure in the trial,” said Holmes, as he handed the bag with its contents to the inspector. “It is now necessary that we should try to throw some light upon this third bullet, which has clearly, from the splintering of the wood, been fired from inside the room. I should like to see Mrs. King, the cook, again. You said, Mrs. King, that you were awakened by a loud explosion. When you said that, did you mean that it seemed to you to be louder than the second one?”

"Oh, Mynheer Cornelius, speak, speak!" exclaimed Rosa, still bathed in tears.

"Give me your hand, and promise me not to laugh, my dear child."

"Laugh," exclaimed Rosa, frantic with grief, "laugh at this moment! do you not see my tears?"

"Rosa, you are no stranger to me. I have not seen much of you, but that little is enough to make me appreciate your character. I have never seen a woman more fair or more pure than you are, and if from this moment I take no more notice of you, forgive me; it is only because, on leaving this world, I do not wish to have any further regret."

Rosa felt a shudder creeping over her frame, for, whilst the prisoner pronounced these words, the belfry clock of the Buytenhof struck eleven.

Cornelius understood her. "Yes, yes, let us make haste," he said, "you are right, Rosa."

Then, taking the paper with the three suckers from his breast, where he had again put it, since he had no longer any fear of being searched, he said: "My dear girl, I have been very fond of flowers. That was at a time when I did not know that there was anything else to be loved. Don't blush, Rosa, nor turn away; and even if I were making you a declaration of love, alas! poor dear, it would be of no more consequence. Down there in the yard, there is an instrument of steel, which in sixty minutes will put an end to my boldness. Well, Rosa, I loved flowers dearly, and I have found, or at least I believe so, the secret of the great black tulip, which it has been considered impossible to grow, and for which, as you know, or may not know, a prize of a hundred thousand guilders has been offered by the Horticultural Society of Haarlem. These hundred thousand guilders -- and Heaven knows I do not regret them -- these hundred thousand guilders I have here in this paper, for they are won by the three bulbs wrapped up in it, which you may take, Rosa, as I make you a present of them."

"Mynheer Cornelius!"

"Yes, yes, Rosa, you may take them; you are not wronging any one, my child. I am alone in this world; my parents are dead; I never had a sister or a brother. I have never had a thought of loving any one with what is called love, and if any one has loved me, I have not known it. However, you see well, Rosa, that I am abandoned by everybody, as in this sad hour you alone are with me in my prison, consoling and assisting me."

"But, sir, a hundred thousand guilders!"

"Well, let us talk seriously, my dear child: those hundred thousand guilders will be a nice marriage portion, with your pretty face; you shall have them, Rosa, dear Rosa, and I ask nothing in return but your promise that you will marry a fine young man, whom you love, and who will love you, as dearly as I loved my flowers. Don't interrupt me, Rosa dear, I have only a few minutes more."

The poor girl was nearly choking with her sobs.

Cornelius took her by the hand.

"Listen to me," he continued: "I'll tell you how to manage it. Go to Dort and ask Butruysheim, my gardener, for soil from my border number six, fill a deep box with it, and plant in it these three bulbs. They will flower next May, that is to say, in seven months; and, when you see the flower forming on the stem, be careful at night to protect them from the wind, and by day to screen them from the sun. They will flower black, I am quite sure of it. You are then to apprise the President of the Haarlem Society. He will cause the color of the flower to be proved before a committee and these hundred thousand guilders will be paid to you."