"My! what a mark for a shot!" whispered Jim.
Then they heard a sharp command in Spanish and both the dog and the Mexican disappeared from view.
"We had better move along, Jim," said the engineer, "or we will be on the hot end of a chase ourselves." Without a word Jim started, but he would not run far.
CHAPTER XIII
THE MAN IN THE GULLY
The two friends disappeared in the fog, in a southerly direction from the house and after going for about a quarter of a mile, Jim called a sudden halt.
"Hold on, John," he said, "there is something coming our way."
"I don't hear anything," replied Berwick. "What does it sound like?"