millions of years, but the Canyon is doing business at the same old
stand. I hope those pintos are all right up there," added the guide
anxiously.

"Mebby they're struck," suggested Stacy.

"Mebby they are," replied Nance. "Come, we'll be getting back unless
you want to get wet."

A dash of rain followed almost instantly upon the words. The three
started at a trot for the camp. They found the Professor and his two
companions anxiously awaiting their return.

"That was a severe bolt," said the Professor.

"Always sounds louder down here, you know," replied Dad. "Echoes."

"Yes, I understand."

"Is---is it going to rain?" questioned Walter.

"No, it's going to pour," returned Chunky. "You'll need your rubber
boots before long."

"Move that camp fire in further," directed Nance. "It'll be drowned out
in a minute."

This was attended with some difficulty, but in a few minutes they had
the fire burning brightly under the ledge. Then the rain began. It
seemed to be a cloudburst instead of a rain. Lightning was almost