I felt that I had gone mad. What a piteous state was ours—all of us madmen! We saw Larsan everywhere, and, perhaps, Darzac himself might more than once have gazed at me, Sainclair, saying to himself: “Suppose that he were Larsan!” More than—once! I speak as though it were years since we had been locked up in the château and it was now just four days. We came here on the eighth of April in the evening.

It is true that my heart had never beaten so wildly when I had asked myself the same terrible question about the others; perhaps, because it was less terrible when there was question of any of the others. And then, how strange that such a thought should have come to me! Instead of my spirit recoiling in affright before the black abyss of such an incredible hypothesis, it was, on the contrary, attracted, enchained, horribly bewitched by it. It was as though struck with vertigo which it could do nothing to evade. It glued my eyes to that figure standing upon the western boulevard, making me find the attitudes, the gestures, a strong resemblance from the rear—and then, the profile—and even the face. Yes, all—all. He did look like Larsan. Yes, but just as strongly did the face and figure resemble Darzac.

How was it that this idea had come to me that night for the first time? Now that I thought of it—it should have been our first hypothesis of all. Was it not true that, at the time of “The Mystery of the Yellow Room,” the silhouette of Larsan had been confounded at the moment of the crime with that of Darzac? Was it not true that the man who was believed to be Darzac, who had come to inquire for Mlle. Stangerson’s answer at Post Office Box No. 40, had really been Larsan himself? Was it not true that this emperor of disguises had already undertaken with success to appear to be Darzac?—and to such good purpose that Mlle. Stangerson’s fiancé had been accused of being the perpetrator of the crimes committed by the other?

It was true—all true—and yet when I ordered my restless heart to be quiet and listen to reason, I knew that my hypothesis was absurd. Absurd? Why? Look at him there, the ghost of Larsan which strides along with long paces like those of the monster! Yes, but the shoulders are those of Darzac.

I say absurd because anyone who was not Darzac might have passed for him in the shade and the mystery that surrounded the drama of the Glandier. But here we have lived with the man. We have talked with him—touched him.

We have lived with him? No!

To begin with, he was rarely there among us. Always locked in his own room or bending over that useless work in the Tower of the Bold. A fine pretext, that of drawing, to prevent anyone’s seeing your face and to make it appear natural to answer questions without turning the head!

But he was not drawing all the time! Yes, but at other times, always, except to-night, he wore his dark glasses. Ah! that accident in the laboratory had been well contrived. That little lamp which exploded knew—I have always thought so, it seems to me—the service which it was going to do for Larsan when Larsan should have taken the place of Darzac. It permitted him to evade always and everywhere the full light of day—because of the weakness of his eyes. How then! Was it not always Mlle. Stangerson or Rouletabille who had managed to find dark corners where M. Darzac’s eyes could not be exposed to the sun? But, lately, he himself, more than anyone else now that I reflected upon it, had been careful to keep in the shadow—we have seen him seldom and always in the shadow. That little “hall of counsel” was very dark, “la Louve” was dark, and he had chosen the two rooms in the Square Tower which are plunged in semi-darkness.

But still—still—Rouletabille could not be deceived like that—even for three days. But, as the lad himself said, Larsan was born before Rouletabille and was his father.

And suddenly there recurred to my mind the first act of Darzac when he came to meet us at Cannes and entered our compartment with us. He drew the curtain. The shadow—always the shadow!