Suddenly Jack's hand came in contact with something in the darkness.

"A man!" he exclaimed.

"What did you think I was? A fish?" came the reply. "I've a right to escape as well as you."

"Who are you?" asked Frank.

At that moment, as suddenly as it had descended, the fog lifted.

Jack looked at the other man in the water and uttered an exclamation of pleasure.

"Harris!" he cried.

CHAPTER XIX

ADRIFT

The great naval battle of Jutland was over.