The sentinels, who saw him pass and repass with his son, carrying a lantern, could not fathom his conduct, and thought that the General had gone mad. Every now and then Yoke-Moura would fall on his knees and press his ear to the ground. Daiske held his breath. Once, the General sprang up Hastily, greatly agitated.

"Is it the blood buzzing in my ears?" he cried; "I thought I heard something. Listen, my son, and see if I was mistaken."

The boy knelt in his turn, and laid his ear to the ground.

"Father," said he, "I distinctly hear distant blows,—muffled, but regular."

The General listened again.

"Yes, yes!" said he; "I hear them very plainly too; they are the strokes of a pick against the earth. It is there! We have them now; we are saved from a terrible danger!"

"What is it, father?" asked Daiske.

"What is it? Hieyas' soldiers are digging an underground passage, which leads from their camp, passes below the city, and the moat, and will open here."

"Is it possible?" cried Daiske.

"Fortunately a spy warned me betimes of the work which they had in hand; but no one knew where the mouth of the tunnel was to be. If I had left the castle, as Fide-Yori wished, we should have been lost."