"Wait a while," said he in a whisper. "When next the lightning flashes look ahead of you—a little to the right, and you will see a cobweb path up the face of the rock."

"Lead us to the path—cobweb or not we will mount it. We are accustomed to that, and this is tedious—tarrying here. Curse that cat! Here she is again!"

"Ah, Messire—you do not comprehend. Have you never been in La Roque?"

"I? Never! Do you suppose they would suffer me within the walls?"

"Then, Messire, you cannot understand how it is that of the garrison none are awake, how it comes that there is no need for watchfulness. Wait a while, the lightning—there—did you see?"

The old man pointed in the direction of the stair. The construction of this path of ascent has been already described. It consisted of a ladder of pegs driven into the rock, each peg sustained by a wedge underneath it. Nothing was easier than by a blow to loosen the wedge and to throw the steps down, and when down no passage could be effected to or from the castle along the face of the rock.

"Did you observe?" asked the old man.

"I observed nothing save a stair."

"Look at the base of the stair. Ah! the hail! how it whitens the ground, how it lights up the landscape. One can see a little now, and presently, if you will have patience, Messire, I will explain it all."

"I want no explanation, I want to mount the stair and enter the castle."