"Oh, how awful!" said the civil engineer, in a hoarse tone. "Where did the inspector find it?"

He dropped into his chair again, but only for a moment; then, drawing himself up, he hurried toward the door with a jerky step.

"I'm going, Monsieur le Préfet, I'm going. To-morrow morning I'll show you…. I shall have all the proofs…. And the police will protect me…. I am ill, I know, but I want to live! I have the right to live … and my son, too…. And we will live…. Oh, the scoundrels!—"

And he ran, stumbling out, like a drunken man.

M. Desmalions rose hastily.

"I shall have inquiries made about that man's circumstances…. I shall have his house watched. I've telephoned to the detective office already. I'm expecting some one in whom I have every confidence."

Don Luis said:

"Monsieur le Préfet, I beg you, with an earnestness which you will understand, to authorize me to pursue the investigation. Cosmo Mornington's will makes it my duty and, allow me to say, gives me the right to do so. M. Fauville's enemies have given proofs of extraordinary cleverness and daring. I want to have the honour of being at the post of danger to-night, at M. Fauville's house, near his person."

The Prefect hesitated. He was bound to reflect how greatly to Don Luis Perenna's interest it was that none of the Mornington heirs should be discovered, or at least be able to come between him and the millions of the inheritance. Was it safe to attribute to a noble sentiment of gratitude, to a lofty conception of friendship and duty, that strange longing to protect Hippolyte Fauville against the death that threatened him?

For some seconds M. Desmalions watched that resolute face, those intelligent eyes, at once innocent and satirical, grave and smiling, eyes through which you could certainly not penetrate their owner's baffling individuality, but which nevertheless looked at you with an expression of absolute frankness and sincerity. Then he called his secretary: