CHAPTER IV.
UNMASKED.
Hans and Professor Scotch uttered exclamations of horror, starting back from the sight revealed by the light that came from the window set deep in the adobe wall.
Frank's teeth came together with a peculiar click, but he uttered no exclamation, nor did he start.
This seemed to affect the old man unpleasantly, for he turned on Frank, crying in an accusing manner and tone:
"Have you no heart? Are you made of stone?"
"Hardly," was the reply.
"This finger—it is the second torn from the hand of my boy by Pacheco, the bandit—Pacheco, the monster!"