"Frank began shooting, and his first bullet brought down one of the ponies of the pursuers." (See page [14])
CHAPTER II.
GONE.
"Bandits!" cried Jack Burk. "It may be Pacheco!"
"Pacheco?" questioned Frank.
"Pacheco, the human hawk! He haunts the mountains and the desert. He pursued us across the desert, but we escaped him. I have been in hiding here to avoid him. He believes we brought much treasure from the mountains."
The professor had leaped to the door, and was looking away on the plain. Now he cried, excitedly: