"You'll have a look over the country tomorrow," said Dad.

"Where is the Canyon?" asked Tad, eager for a view of the wonderful spot.

"You'll get a glimpse of it in the morning. You'll know the place when
you get to it. Here we be at the top. There's the hole."

Chunky peered into the crater rather timidly.

"How do you get down?" he asked.

"Slide," answered Ned.

"I can do that, but what's at the bottom?"

"The same thing. Cinders and lava," answered Tad. "What would you
expect to find in a volcano?"

"I'd never expect to find Stacy Brown in one, and I'm not sure that I'm
going to."

"All hands follow me. There's no danger," called the guide, shouldering
his pack and leaping and sliding down the sharp incline. He was
followed by the boys with shouts of glee. They went tumbling head over
heels, laughing, whooping, letting off their excess steam. The
Professor's grim face relaxed in a smile; Dad's eyes twinkled.

"We'll take it out of them by and by," he confided to the Professor.

"You don't know them," answered Professor Zepplin. "Better men than