"I don't think so," returned Jack. "If it was money I think they
would have picked out a more likely place. I guess it must have
been papers, or something like that."

"Pooh!" criticized Donald, "what would anybody in their senses want
to steal papers for?"

"There are more unlikely things than that," replied Jack. "I have
read of such things."

"Pshaw!" retorted Donald, "that's nothing. I've read of robbers'
caves and all that sort of thing, but I've never seen any."

"Which proves there never were any," retorted Jack sarcastically.

"Have you got any dues, Sherlock?" asked Rand laughingly.

"Not yet," replied Jack seriously, "but I am looking for them. They
sometimes turn up in the most unexpected places."

"Huh!" sniffed Donald, "your turnips run mostly to tops."

While talking thus, the boys had been putting their supplies and
tackle into the boat which they had run out into the river.

"Which way do you want to go?" asked Rand when they were ready to
start.

"Up," said Pepper.