"You go," said Desmond to Brooks.

The tramp did not hesitate, but started to crawl over the oddly
constructed bridge, and he did so as well as the guide had done. Then
Desmond crossed and the instant all hands were over the guide took up
his bridge stowed it away, and said:

"When we cross back it will be in the daytime, and much harder."

"Much harder in the daytime?"

"Yes."

"I should think it would be easier."

The guide laughed and said:

"It might appear so, but in the daytime you will realize just what you
are doing. You will see the dark abyss beneath you, and when the bridge
sways downward your heart will be in your throat, I tell you. At night,
however, you do not know just what you are doing."

Desmond saw the truth of what the guide said, and observed that the man
was quite a philosopher.

"Now let me go in advance," said Creedon.

He led the way and soon turned into what he called Creedon Street. It
was a broad opening with a solid flooring, and walls of rock on either
side--the most singular and remarkable rock conformation that either