"That may be the place where the stone chest is kept," said Bob.
"More likely it is a burial place," replied Captain Sumner. "I've seen such spots before. Maybe they're preparing for a funeral."
"Can't we get a little closer to them?"
"It would not be safe. Hark!"
From a distance they heard the mournful toot of a large horn.
"That's a funeral horn, I'm sure," said the captain. "If they are coming this way we had better—Hullo! look!"
The captain pointed to an opening to their left.
A band of men were advancing.
They were guarding a prisoner—a white man, who walked in their midst.
Bob gave the white man one swift look, and then shrieked out at the top of his voice: