"We might as well have a blanket apiece," said Donald. "It is only another case of a fair exchange. The Mexicans have our suit cases."
Each took a blanket and Adrian was so fortunate after searching all over the house as to find a shotgun and a belt full of loaded shells that went with it.
"If those shells were loaded with buckshot you'd be all right," said Billie. "They're the——"
His speech was interrupted by a cry that fairly made their blood run cold.
"What's that?" and the three stopped as though they had been paralysed.
Again came the cry, and with a single bound the boys were out in the open, each with his weapon ready for instant use.
They could see no one, but there was the sound of something crashing through the brush which hid the railroad from the house.
"Sounded like a wild cat," declared Donald.
"Or a coyote," said Billie.
"I'm sure it was a human voice," remarked Adrian. "Do you remember the Zuñis?" referring to another adventure told in the story of the "Broncho Rider Boys Along the Border."