"No, señor Englishman. I do not say that a man who has lost his horse has not the right to reclaim it wherever he may find it. That is, if he happens to be in a place where the law is respected, or if not if he happens to be with the strongest party; but in the present case I could not think of depriving you of the horse. It is evident that he has found a good master, and that you stand in his affections just as my son did; besides, if you will pardon my saying so, the horse is more to you than it is to me. There are many thousands of horses running wild on my estates, and although my son used to assert that there was not one which was equal to his horse, there are numbers that are but little inferior, for our horses are famous. They are mustangs crossed with pure Arab blood, which my grandfather had selected and sent over to him, regardless of cost. Pray, therefore, keep the bay. May it carry you long and safely! It will be a real pleasure to my wife and myself to know that poor Estafan's favourite horse is in such good hands. I have also," he said courteously to Royce, "taken the liberty of ordering my peóns to change the saddle of the horse you rode to one more worthy of being a companion to the bay. It is of no use for one man to be well mounted if his comrade does not bestride a steed of similar swiftness."

Hugh and Royce warmly thanked Don Ramon for his kindness. The horses were brought round, and that of Royce fully bore out the commendation of the Mexican.

"We hope to see you again to-morrow," Don Ramon said as they mounted. "You will always be welcome guests here."

"And you will not forget," Don Carlos said in a low tone, "if you ever meet those men."

"That has been a fortunate adventure," Royce said as they rode off. "I have often wondered whether we should ever fall upon the original owner of your horse, and pictured to myself that we might have a bad time of it if we did. It isn't everyone who would have accepted that receipt of yours as proof."

"No; I always felt that myself, Royce. Well, that sorrel of yours is a splendid animal, and really worthy to go with Prince. I often wished you had a mount as good as mine, for my sake as well as your own, for there is no doubt of the truth of what he said. When two friends are riding together their pace is only that of the slowest horse."

"That is so," Royce agreed. "So there is some Arab blood in them. I have often talked over the bay in the camps. We all agreed we had never seen so good a mustang. There are good mustangs, but they are never a match for a really first-rate States horse, and yet we could not see any signs of such a cross in Prince. He wur mustang, but there seemed more whip-cord and wire about him than a mustang has. I have heard say that the mustangs are the descendants of Spanish barbs, and that the barbs were Moorish horses."

"Yes, that is so, Royce. The barb is related to the Arab, but is not, I believe, of such pure blood; it is a coarser animal; and if Don Ramon's grandfather brought over some pure Arabs of first-rate strain they would, no doubt, greatly improve the mustangs."

"Waal, Hugh, if we ever do meet those two murdering villains, I reckon their chances of getting away from us ain't worth mentioning."

The reception on their return to the hotel was very different to that they had before experienced. They had been visitors at Don Ramon's hacienda, and Don Ramon was the richest proprietor in the district of El Paso. After they had finished supper that evening, and were enjoying coffee and cigars at a table placed with others in a garden behind the hotel, the two miners who had stood by them in the morning came up and took seats beside them. "You had a pretty rough welcome this morning at El Paso," the big man said. "But, by the way, I do not know what to call you. My own name is Sim. I am generally known as Surly Sim. My friend's name is Frank; I generally call him the doctor."