They remained gazing at the weird sight of the petrified man for some
time.

"Then the moon was once inhabited?" asked Jack at length.

"I believe so--yes," answered Professor Henderson.

"Then where are the other people?" asked Mark. "There must be more than
one left. Why was this man off here alone?"

"We don't know," responded the German scientist. "Perhaps he was off
alone in the mountains when death overtook him, or perhaps all his
companions were buried under an upheaval of rock. We can only
theorize."

"It will be something else to put in the book I am to write," said Mr.
Henderson. "But, now that we have evidence of former life on the moon,
we must investigate further. We will make an attempt to go to the other
side of the country, and to that end I suggest that we set our
projectile in motion and travel a bit. There is little more to see
here."

This plan met with general approval, and, after some photographs had
been taken of the petrified man, and the professors had made notes, and
set down data regarding him, and had tried to guess how long he had
been dead, they went back to the _Annihilator_.

"Well, did yo' all see him?" asked Washington.