Frank glanced sharply up. He did not like the wild tone in which the words were spoken.
"What is it?" he asked sharply.
"I'm tired of this, I'm going to swim for it," replied Harry with a foolish, hysterical laugh.
Frank saw what had happened. The boy had become half-delirious under the mental strain he had undergone.
"Sit down, old fellow," he said kindly, "help will come soon I am sure."
"Yes, a steamboat will come sailing down the river and take us home in the captain's cabin I suppose," said Harry foolishly.
But nevertheless Frank's stern command to "shut up" and not make a foot of himself brought him to his senses and he said no more till the stillness was broken by a sudden cry from above.
"Bosses—oh, bosses."
"Ahoy there; castaways!"
Frank looked up.