“She is ill, as you know. The doctor has ordered her a sleeping draught. I administer it. I can arrange that she has a strong dose in the morning instead of her other medicine. She will sleep till the late afternoon.”

I rattled this off glibly in my best French. Madame la Marquise heaved a deep sigh of relief.

“Ah! that is good!” she said. “Then listen to me. Do as I tell you, and to-morrow you will be richer by fifty thousand francs. Come to the château in the morning, dressed in your friend’s clothes. My son will be there; together you will assist at the opening of the secret doors, and when my son has wound up the old clock himself, he will place fifty thousand francs in your hands.”

“But Monsieur le Curé?” I suggested tentatively.

“He is ill,” she replied curtly.

But as she spoke these three words there was such an evil sneer in her face, such a look of cruel triumph in her eyes, that all my worst suspicions were at once confirmed.

Had these people’s unscrupulous rapacity indeed bribed some needy country practitioner to put the Curé temporarily out of the way? It was too awful to think of, and I can tell you that I needed all my presence of mind, all my desire to act my part bravely and intelligently to the end, not to fly from this woman in horror.

She gave me a few more instructions with regard to the services which she and her precious son would expect of me on the morrow. It seems that, some time before her death, Miss de Genneville had laid strict injunctions on two of her most trusted men-servants to remain in the château, and to be on the watch on the eventful 20th day of September of this year, lest any serious violence be done to the English lady or to the Curé. It was with a view to allay any suspicion which might arise in the minds of these two men that the Marquis desired me to impersonate Lady Molly to-morrow, and to enter with him—on seemingly friendly terms—the room where stood the monumental clock.

For these services, together with those whereby Lady Molly was to be sent into a drugged sleep whilst the theft of the will was being carried through, I—Mary Granard—was to receive from Monsieur le Marquis de Terhoven the sum of fifty thousand francs.

All these matters being settled to this wicked woman’s apparent satisfaction, she presently took hold of both my hands, shook them warmly, and called me her dearest friend; assured me of everlasting gratitude, and finally, to my intense relief, slipped noiselessly out of my room.