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: "It's my father!".