“Yes, I do. Take the glass, Barney, and tell me what that object is against that part of an extinct crater over there. Would you not call it a building?”

Barney took the glass and studied the object.

None had keener or clearer vision than the Celt, and he said presently:

“Ye’re roight, Misther Frank. It’s a buildin’, an’ shure it’s made av stone an’ a roof of fir boughs. Shure there’s a wide clearing about it, and on three sides at least there is a steep descint, bejabers, which no man livin’ cud iver cloimb.”

“I thought so,” declared Frank, with gratification; “that will do, Barney.”

The Irishman handed Frank the glass. The young inventor was just about to view the distant buildings again when a startled yell came from Pomp.

“Massy sabe us!” cried the terrified darky. “We’se all goin’ to kingdom come dis berry minute. Look out fo’ dat big stun, Marse Frank—look out, everybody!”

Frank at that moment saw with horror what had caused Pomp’s cry.

CHAPTER VI.
SILVER SAM RETURNS.

Engrossed in contemplation of the distant crater Barney and Frank had not heeded things in the near vicinity.