r with walking?"

"It's a long ways and the mountains are full of our men."

"Can't you give us a safe passage? You say we have done you a
favor by turning these two officers over to you," suggested
Donald, indicating with a nod of his head the captain and
lieutenant of the train guard who were now held prisoners.

"I'll do the best I can," was the reply, "but you will have to
remain with me to-day. We are on scout duty and shall not return
to the main body until to-night."

"That'll suit me all right," laughed Billie, "and if you don't
mind I think I'll go into the house somewhere and take a nap."

"Bueno," laughed the captain. "You might as well all take a nap.
If we have occasion to leave the neighborhood we will call you."

Ten minutes later the three were fast asleep on a pile of Mexican
blankets in the best room in the house.

Three hours later they were awakened by a fusillade of shots.

They sprang to their feet and looked around. For just a moment
they could not remember where they were. Then they recalled their
situation and became on the alert.

"Trouble outside," was Don's laconic statement.

He and Billie drew the revolvers they had captured the night
before.

"Put 'em up," advised Adrian. "We're not here to fight."

"We might have to," from Billie.

"Not at all. If one side wins, we are safe. If the other side
wins, we are prisoners and the attackers will be our rescuers."

"Great head, Ad," was Billie's comment. "But I'd like to know
what is going on," as another fusillade was heard.

"Better stay where we are till the shooting stops," said Don.

It was good advice and the boys waited as quietly as they could.

A few minutes later there was a volley and a shout, followed by
the sound of rushing feet. Then there was quiet as the shots were
heard receding.

When none of their friends returned after a few minutes, the boys
ventured to the door. There was no one in sight.

"I wonder where they have all gone?" ventured Billie.

"I expect that our friends have run away and some of Huerta's
soldiers are chasing them."

"If they do, they will run into an ambush," said Adrian.

Which is exactly what happened.

"That won't do us any good," said Don. "Now that we are alone, I
vote that we get back to the railroad track. We won't get lost if
we follow that and a train may come along."

The advice seemed good and they started to go.

"Hold on," exclaimed Billie. "Let's see if we can't f