We ran back as quickly as we could and told the others, still resting by the river. Within a few moments, we were back at the cave. Everyone was excited as we entered. That is, everyone except for the cheerleaders. They complained it was too dirty and dusty, but even they knew that, although it wasn't the Ritz, it was shelter from the elements, wild animals, and from—although we didn't want to think about it—terrorists.

We spent some time working together, clearing the ...