"Yes, you had to see Mme. Mergy home."

"Just so, and to look after her. You can understand the poor thing's despair... Her son Gilbert so near death... And such a death!... At that time we could only hope for a miracle... an impossible miracle. I myself was resigned to the inevitable... You know as well as I do, when fate shows itself implacable, one ends by despairing."

"But I thought," observed Prasville, "that your intention, on leaving me, was to drag Daubrecq's secret from him at all costs."

"Certainly. But Daubrecq was not in Paris."

"Oh?"

"No. He was on his way to Paris in a motor-car."

"Have you a motor-car, M. Nicole?"

"Yes, when I need it: an out-of-date concern, an old tin kettle of sorts. Well, he was on his way to Paris in a motor-car, or rather on the roof of a motor-car, inside a trunk in which I packed him. But, unfortunately, the motor was unable to reach Paris until after the execution. Thereupon... "

Prasville stared at M. Nicole with an air of stupefaction. If he had retained the least doubt of the individual's real identity, this manner of dealing with Daubrecq would have removed it. By Jingo! To pack a man in a trunk and pitch him on the top of a motorcar!... No one but but Lupin would indulge in such a freak, no one but Lupin would confess it with that ingenuous coolness!

"Thereupon," echoed Prasville, "you decided what?"

"I cast about for another method."

"What method?"

"Why, surely, monsieur le secretaire-genera1, you know as well as I do!"

"How do you mean?"

"Why, weren't you at the execution?"

"I was."

"In that case, you saw both Vaucheray and the executioner bit, one mortally, the other with a slight wound. And you can't fail to see... "

"Oh," exclaimed Prasville, dumbfounded, "you confess it? It was you who fired the shots, this morning?"

"Come, monsieur le secretaire-general, think! What choice had I? The list of the Twenty-seven which you examined was a forgery. Daubrecq, who possessed the genuine one, would not arrive until a few hours after the execution. There was therefore but one way for me to save Gilbert and obtain his pardon; and that was to delay the execution by a few hours."

"Obviously."

"Well, of course. By killing that infamous brute, that hardened criminal, Vaucheray, and wounding the executioner, I spread disorder and panic; I made Gilbert's execution physically and morally impossible; and I thus gained the few hours which were indispensable for my purpose."

"Obviously," repeated Prasville.

"Well, of course," repeated Lupin, "it gives us all - the government, the president and myself - time to reflect and to see the question in a clearer light. What do you think of it, monsieur le secretaire-general?"

Prasville thought a number of things, especially that this Nicole was giving proof, to use a vulgar phrase, of the most infernal cheek, of a cheek so great that Prasville felt inclined to ask himself if he was really right in identifying Nico1e with Lupin and Lupin with Nicole.

"I think, M. Nicole, that a man has to be a jolly good shot to kill a person whom he wants to kill, at a distance of a hundred yards, and to wound another person whom he only wants to wound."

“I think I can, Stackhurst. Come with me now! And you, Inspector, come along! We will see if we cannot deliver this murderer into your hands.”

Leaving the unconscious man in the charge of my housekeeper, we all three went down to the deadly lagoon. On the shingle there was piled a little heap of towels and clothes left by the stricken man. Slowly I walked round the edge of the water, my comrades in Indian file behind me. Most of the pool was quite shallow, but under the cliff where the beach was hollowed out it was four or five feet deep. It was to this part that a swimmer would naturally go, for it formed a beautiful pellucid green pool as clear as crystal. A line of rocks lay above it at the base of the cliff, and along this I led the way, peering eagerly into the depths beneath me. I had reached the deepest and stillest pool when my eyes caught that for which they were searching, and I burst into a shout of triumph.

“Cyanea!” I cried. “Cyanea! Behold the Lion’s Mane!”

The strange object at which I pointed did indeed look like a tangled mass torn from the mane of a lion. It lay upon a rocky shelf some three feet under the water, a curious waving, vibrating, hairy creature with streaks of silver among its yellow tresses. It pulsated with a slow, heavy dilation and contraction.

“It has done mischief enough. Its day is over!” I cried. “Help me, Stackhurst! Let us end the murderer forever.”

There was a big boulder just above the ledge, and we pushed it until it fell with a tremendous splash into the water. When the ripples had cleared we saw that it had settled upon the ledge below. One flapping edge of yellow membrane showed that our victim was beneath it. A thick oily scum oozed out from below the stone and stained the water round, rising slowly to the surface.

“Well, this gets me!” cried the inspector. “What was it, Mr. Holmes? I’m born and bred in these parts, but I never saw such a thing. It don’t belong to Sussex.”

“Just as well for Sussex,” I remarked. “It may have been the southwest gale that brought it up. Come back to my house, both of you, and I will give you the terrible experience of one who has good reason to remember his own meeting with the same peril of the seas.”

When we reached my study we found that Murdoch was so far recovered that he could sit up. He was dazed in mind, and every now and then was shaken by a paroxysm of pain. In broken words he explained that he had no notion what had occurred to him, save that terrific pangs had suddenly shot through him, and that it had taken all his fortitude to reach the bank.

“Here is a book,” I said, taking up the little volume, “which first brought light into what might have been forever dark. It is Out of Doors, by the famous observer, J. G. Wood. Wood himself very nearly perished from contact with this vile creature, so he wrote with a very full knowledge. Cyanea capillata is the miscreant’s full name, and he can be as dangerous to life as, and far more painful than, the bite of the cobra. Let me briefly give this extract.