“Yes, but they failed to find it. After I purchased the castle, I made a diligent search for it, but without success. You must remember that this tower is surrounded by water and connected with the castle only by a bridge; consequently, the passage must be underneath the old moat. The plan that was in the book in the National Library showed a series of stairs with a total of forty-eight steps, which indicates a depth of more than ten meters. You see, the mystery lies within the walls of this room, and yet I dislike to tear them down.”
“Is there nothing to show where it is?”
“Nothing.”
“Mon. Devanne, we should turn our attention to the two quotations,” suggested Father Gélis.
“Oh!” exclaimed Mon. Devanne, laughing, “our worthy father is fond of reading memoirs and delving into the musty archives of the castle. Everything relating to Thibermesnil interests him greatly. But the quotations that he mentions only serve to complicate the mystery. He has read somewhere that two kings of France have known the key to the puzzle.”
“Two kings of France! Who were they?”
“Henry the Fourth and Louis the Sixteenth. And the legend runs like this: On the eve of the battle of Arques, Henry the Fourth spent the night in this castle. At eleven o’clock in the evening, Louise de Tancarville, the prettiest woman in Normandy, was brought into the castle through the subterranean passage by Duke Edgard, who, at the same time, informed the king of the secret passage. Afterward, the king confided the secret to his minister Sully, who, in turn, relates the story in his book, “Royales Economies d’Etat,” without making any comment upon it, but linking with it this incomprehensible sentence: ‘Turn one eye on the bee that shakes, the other eye will lead to God!’”
After a brief silence, Velmont laughed and said:
“Certainly, it doesn’t throw a dazzling light upon the subject.”
“No; but Father Gélis claims that Sully concealed the key to the mystery in this strange sentence in order to keep the secret from the secretaries to whom he dictated his memoirs.”