"Marie Trevec," repeated Le Bihan; "the priest cursed Marie Trevec, and all her family and descendants. He was shot as he knelt, having a mask of leather over his face, because the Bretons who composed the squad of execution refused to fire at a priest unless his face was concealed. The priest was l'Abbé Sorgue, commonly known as the Black Priest on account of his dark face and swarthy eyebrows. He was buried with a stake through his heart."

Le Bihan paused, hesitated, looked at me, and handed the manuscript back to Durand. The gendarme took it and slipped it into the brass cylinder.

"So," said I, "the thirty-ninth skull is the skull of the Black Priest."

"Yes," said Fortin. "I hope they won't find it."

"I have forbidden them to proceed," said the mayor querulously. "You heard me, Max Fortin."

I rose and picked up my gun. Môme came and pushed his head into my hand.

"That's a fine dog," observed Durand, also rising.

"Why don't you wish to find his skull?" I asked Le Bihan. "It would be curious to see whether the arrow brand really burned into the bone."

"There is something in that scroll that I didn't read to you," said the mayor grimly. "Do you wish to know what it is?"

"Of course," I replied in surprise.