against an unseen and silent enemy who mowed them down like a field of grain. With wild yells they fled back along the trail they had come.
"I guess that does it!" cried Tom. "We'd better join the others now."
Mounting their mules, they galloped back to where San Pedro and his natives were pressing forward.
"Did you have the honor of defeating them," the head mule driver asked.
"I had the honor," answered Tom, with a grim smile.
Then they pressed on, but there was no more danger. That night they camped in a peaceful valley and were not disturbed, and the following day they put a good many miles behind them. On the advice of San Pedro, they avoided the next two villages as they realized that they were in the war zone, and then they headed for a large town where Tom was sure he would hear some news of the giants.
They had to camp twice at night before reaching this town, and when they did get to it they were warmly welcomed, for white explorers had been there years before, and had treated the natives well. Tom distributed many trinkets among the head men and won their good will so that the
