“Jiminy crickets and little jumping hoptoads!” he exclaimed. “Why, there isn’t any bottom!”

Sure enough, the bottom had dropped completely away. They were floating on what seemed like a bottomless blue liquid.

“I feel as if we were sort of hanging in a piece of the sky,” said Spider. “I never had such a funny sensation.”

The doctor smiled. “You’ve got the Crater Lake blues,” he said. “It scares some people.”

“I like it,” said Spider. “Gee, it’s wonderful!”

Bennie glanced over his shoulder at Wizard Island, which looked about a quarter of a mile away, headed his bow for it, and started to pull again.

“We’ll be there in a jiffy,” he said.

“How far do you think it is?” his uncle asked.

“’Bout a quarter of a mile.”

“It’s almost two, in a straight line.”