Riding rapidly up the slope, his horse was soon reined up on the crest of the ridge. There he discovered on the slope below him a party of some fifteen armed men. Bringing his rifle to bear, a Mexican saddle was emptied in an instant. The raiders replied; but their guns would not send a ball so far. They were not less than four hundred yards away. Jesse continued to empty saddles until four men were down. The Mexicans turned and fled, and Jesse gave them a parting salute, which brought down a horse. When he rejoined his brother he remarked sententiously, "Well, I've prepared a feast for the vultures over yonder."

"How many are down?" asked the other.

"Oh, only four men and one horse," he answered, with a grim sort of smile.

The dangerous time for them was the shadowy hours. They knew that all the brigands of that region would take their trail. They were a hundred miles from any certain succor. The Mexican raiders are not to be despised in a night affray. They expected attack, and it is one of the peculiarities of the Boys, that they never sleep when there is danger surrounding them. The severe losses which they had sustained only rendered the pursuers more wary; but they still hovered around. The Boys expected an attack that night. The sun was sinking low in the west, and the brothers were earnestly consulting as to the best means of guarding against the consequences of a night attack.

"See," said Frank, "away there on that ridge whose top the sun is gilding! Are those moving objects men on horseback, or a herd of buffalo? What do you think?"

The brothers halted. Since their removal to Texas they never ride abroad without carrying with them a field glass each. They now raised their glasses and looked long and earnestly at the dark objects moving between them and the horizon.

"They are mounted men," said Jesse.

"Texans, Mexicans, Lipans or Commanches? Which do you say?" asked Frank.

Jesse looked again. The mounted men were nearly two miles away—a long distance to determine the character of men, or designate their nationality. Long and carefully did he scrutinize the movements of the horsemen.

"Soldiers—Federal soldiers—by Jehovah!" he exclaimed. "Well, I've seen the time that I would not like to see such a company, but I'm confounded glad they've come around this evening. I'll get a nap to-night, anyway."