“But how does it come that you were captured in Naples by Captain Harwood?” Frank demanded.

“I was just making my way to the ship on which I had engaged passage when I was set upon by three men, apparently Germans. I was overcome and carried aboard the ship, where you found me. That’s all I know about it.”

“Do you think your mission was suspected?”

“I am afraid so. I fear we have been harboring a traitor.”

“Well,” said Jack, “it’s getting late. I guess we would better turn in. We must get an early start in the morning.”

CHAPTER VII.
ON THE JOURNEY.

The sun had not yet risen in the east when the three friends arose. Jack prepared a hasty breakfast, after which he fared forth to see about obtaining camels for the journey. He was successful in his quest, and the edge of the sun creeping over the horizon could just be seen when they prepared to mount.

Frank climbed upon the kneeling camel with no little trepidation.

“I don’t know anything about camel riding,” he called to the others.

“Just hold tight when he gets up and you will be all right,” replied Jack.