for us, and they might visit their wrath on poor Lucien."
"No fear, father; I am convinced that the Dey has already found out his value. Besides, if we escape we shall be able to raise funds to ransom him."
Francisco shook his head.
"And what," said he, "are we to do when we get clear out of the Bab-el-Oued gate, supposing we are so far lucky?"
"Scatter, and make for the head of Frais Vallon," whispered Castello as he passed. "A boat waits at Barbarossa's Tower. Our signal is—"
Here the Portuguese gave a peculiar whistle, which was too low to be heard by the guards, who were busy marshalling the gang.
"You'll agree, father?" urged Mariano, entreatingly.
The merchant replied by a stern "Yes" as the gang was ordered to move on.
Mariano instantly gave his straw hat a tremendous pull to one side, and walked along with a glow of enthusiasm in his countenance. One of the guards, noting this, stepped forward and walked beside him.
"So much the better," thought Mariano; "there will be no time lost when we grapple."
Traversing the passages of the mole, the gang
