Fellows, we're in one of nature's icehouses." "But we're not after ice," Dave protested.
"We won't turn down ice in the wilderness, when we can find it in July," Dick rejoined.
"Not much!" answered practical Tom Reade.

"Why, fellows, ice is just what we need at the camp.

Let's get a closer look at it and make plans for an ice-box over at the camp." "But I want to follow that man of mystery," protested Dave.
"Go ahead, David, little giant," Dick laughed.

"We won't stop you.

But we've lost our man of mystery, anyway, and this cave contains something that we really do want.