"Now each of you will have to carry a pack," announced the guide.
"I will tell you what to take."

"Why, where are we going?" asked Tad.

"We are going to spend the night in the crater of the extinct volcano,"
said the Professor. "Will not that be a strange experience?"

"Hurrah for the crater!" shouted the boys.

"Speaking of volcanoes, I wish you wouldn't open your mouth so wide,
Ned. It makes me dizzy. I'm afraid I'll fall in," growled Chunky.




CHAPTER IV

A NIGHT IN THE CRATER


"What, climb that mountain?" demanded Stacy.

"Surely. You are not afraid of a mountain, are you?" demanded Tad.

"I'm not afraid of---of anything, but I'm delicate, I tell yau."

"Just the same, you'll pack about fifty pounds up the side of that hill,"
jeered Ned Rector.