The water being cold and entirely free from alkali, the horses drank eagerly, and their riders, also, took the chance to refill their canteens, which they always carried strapped to their saddle bows. They also rested awhile, but, when they remounted and rode on, Middleton noticed a light to the northward. On the plains then, no man would pass a light without giving it particular attention, and the four sat on their horses for some minutes studying it closely. They thought at first that it might be a signal light of the Comanches, but, as it did not waver, they concluded that it must be a camp fire. "Now I’m thinking," said Bill Breakstone, "that we oughtn’t to leave a camp fire burning away here on the plains, and we not knowing anything about it. It won’t take us long to ride up and inspect it." "That is a truth," said Middleton. "It is not a difficult matter for four horsemen to overtake a wagon train, but we’ll first see what that fire means." "It iss our duty to do so," said the phlegmatic German. They rode straight toward the light, and their belief that it was a camp fire was soon confirmed. They saw the red blaze rising and quivering, and then dusky figures passing and repassing before it. "We’re yet too far away to tell exactly what those figures are," said Bill Breakstone, "but I don’t see any sign of long hair or war bonnets, and so I take it that they are not Comanches, nor any other kind of Indians, for that matter. No warriors would build so careless a fire or wander so carelessly about it. "They are white men," said Middleton with conviction, as he increased his horse’s pace. "Ah, I see now! Mexicans! Look at the shadows of their great conical hats as they pass before the fire." "Now I wonder what they’re doing here on Texas soil," said Bill Breakstone. Middleton did not answer, but Phil noticed that the look in his eyes was singularly tense and eager. As they drew near the fire, which was a large one, and the hoof-beats of their horses were heard, two men in Mexican. dress, tall conical broad-brimmed hats, embroidered coats and trousers and riding boots, bearing great spurs, came forward to meet them. Phil saw another figure, which had been lying on a blanket by the fire, rise and stand at attention. He instantly perceived, even then, something familiar in the figure. The four rode boldly forward, and Middleton called out: "We are friends!" The two Mexicans who were in advance, rifle in hand, stood irresolutely, and glanced at the man behind them, who had just risen from his blanket. "You are welcome," said this man in good English but with a strong Mexican accent. "We are glad for anybody to share with us our camp fire in this wilderness. Dismount, Señores."