They were now riding swiftly almost due southward, having changed their course to follow the trail, and they kept a sharp watch ahead for Mexican scouts or skirmishers. But the bare country in its winter brown was lone and desolate. The trail led straight ahead, and it would have been obvious now to the most inexperienced eye that an army had passed that way. They saw remains of camp fires, now and then the skeleton of a horse or mule picked clean by buzzards, fragments of worn-out clothing that had been thrown aside, and once a broken-down wagon. Two or three times they saw little mounds of earth with rude wooden crosses stuck upon them, to mark where some of the wounded had died and had been buried.
They came at last to a bit of woodland growing about a spring that seemed to gush straight up from the earth. It was really an open grove with no underbrush, a splendid place for a camp. It was evident that Cos's force had put it to full use, as the earth nearly everywhere had been trodden by hundreds of feet, and the charred pieces of wood were innumerable. The Panther made a long and critical examination of everything.
"I'm thinkin'," he said, "that Cos stayed here three or four days. All the signs p'int that way. He was bound by the terms we gave him at San Antonio to go an' not fight ag'in, but he's shorely takin' his time about it. Look at these bones, will you? Now, Ned, you promisin' scout an' skirmisher, tell me what they are."
"Buffalo bones," replied Ned promptly.
"Right you are," replied the Panther, "an' when Cos left San Antonio he wasn't taking any buffaloes along with him to kill fur meat. They staid here so long that the hunters had time to go out an' shoot game."
"A long lane's the thief of time," said Obed, "and having a big march before him, Cos has concluded to walk instead of run."
"'Cause he was expectin' somethin' that would stop him," said the Panther angrily. "I hate liars an' traitors. Well, we'll soon see."
Their curiosity became so great that they rode at a swift trot on the great south trail, and not ten miles further they came upon the unmistakable evidences of another big camp that had lasted long.
"Slower an' slower," muttered the Panther. "They must have met a messenger. Wa'al, it's fur us to go slow now, too."
But he said aloud:
"Boys, it ain't more'n twenty miles now to the Rio Grande, an' we can hit it by dark. But I'm thinkin' that we'd better be mighty keerful now as we go on."
"I suppose it's because Mexican scouts and skirmishers may be watching," said Ned.
"Yes, an' 'specially that fellow Urrea. His uncle bein' one of Santa Anna's leadin' gen'rals, he's likely to have freer rein, an', as we know, he's clever an' active. I'd hate to fall into his hands again."
They rode more slowly, and three pairs of eyes continually searched the plain for an enemy. Ned's sight was uncommonly acute, and Obed and the Panther frequently appealed to him as a last resort. It flattered his pride and he strove to justify it.
Their pace became slower and slower, and presently the early twilight of winter was coming. A cold wind moaned, but the desolate plain was broken here and there by clumps of trees. At the suggestion of the Panther they rode to one of these and halted under cover of the timber.
"The river can't be much more than a mile ahead," said the Panther, "an' we might run into the Mexicans any minute. We're sheltered here, an' we'd better wait a while. Then I think we can do more stalkin'."
Obed and Ned were not at all averse, and dismounting they stretched themselves, easing their muscles. Old Jack hunted grass and, finding none, rubbed Ned's elbow with his nose suggestively.
"Never mind, old boy," said Ned, patting the glossy muzzle of his faithful comrade. "This is no time for feasting and banqueting. We are hunting Mexicans, you and I, and after that business is over we may consider our pleasures."
They remained several hours among the trees. They saw the last red glow that the sun leaves in the west die away. They saw the full darkness descend over the earth, and then the stars come trooping out. After that they saw a scarlet flush under the horizon which was not a part of the night and its progress. The Panther noted it, and his great face darkened. He turned to Ned.
"You see it, don't you? Now tell me what it is."
"That light, I should say, comes from the fires of an army. And it can be no other army than that of Cos."
"Right again, ain't he, Obed?"
"He surely is. Cos and his men are there. He who breaks his faith when he steals away will have to fight another day. How far off would you say that light is, Panther?"
"'Bout two miles, an' in an hour or so we'll ride fur it. The night will darken up more then, an' it will give us a better chance for lookin' an listenin'. I'll be mightily fooled if we don't find out a lot that's worth knowin'."
True to Obed's prediction, the night deepened somewhat within the hour. Many of the stars were hidden by floating wisps of cloud, and objects could not be seen far on the dusky surface of the plain. But the increased darkness only made the scarlet glow in the south deepen. It seemed, too, to spread far to right and left.
"That's a big force," said the Panther. "It'll take a lot of fires to make a blaze like that."
"I'm agreeing with you," said Obed. "I'm thinking that those are the camp fires of more men than Cos took from San Antonio with him."
"Which would mean," said Ned, "that another Mexican army had come north to join him."
"Anyhow, we'll soon see," said the Panther.
They mounted their horses and rode cautiously toward the light.
CHAPTER V
The three rode abreast, Ned in the center. The boy was on terms of perfect equality with Obed and the Panther. They treated him as a man among men, and respected his character, rather grave for one so young, and always keen to learn.
The land rolled away in swells as usual throughout a great part of Texas, but they were not of much elevation and the red glow in the south was always in sight, deepening fast as they advanced. They stopped at last on a little elevation within the shadow of some myrtle oaks, and saw the fires spread before them only four or five hundred yards away, and along a line of at least two miles. They heard the confused murmur of many men. The dark outlines of cannon were seen against the firelight, and now and then the musical note of a mandolin or guitar came to them.
"We was right in our guess," said the Panther. "It's a lot bigger force than the one that Cos led away from San Antonio, an' it will take a heap of rippin' an' t'arin' an' roarin' to turn it back. Our people don't know how much is comin' ag'in 'em."
The Panther spoke in a solemn tone. Ned saw that he was deeply impressed and that he feared for the future. Good cause had he. Squabbles among the Texan leaders had reduced their army to five or six hundred men.
"Don't you think," said Ned, "that we ought to find out just exactly what is here, and what this army intends?"
"Not a doubt of it," said Obed. "Those who have eyes to see should not go away without seeing."
The Panther nodded violently in assent.
"We must scout about the camp," he said. "Mebbe we'd better divide an' then we can all gather before day-break at the clump of trees back there."
He pointed to a little cluster of trees several hundred yards back of them, and Ned and Obed agreed. The Panther turned away to the right, Obed to the left and Ned took the center. Their plan of dividing their force had a great advantage. One man was much less likely than three to attract undue attention.
Ned went straight ahead a hundred yards or more, when he was stopped by an arroyo five or six feet wide and with very deep banks. He looked about, uncertain at first what to do. Obed and the Panther had already disappeared in the dusk. Before him glowed the red light, and he heard the distant sound of many voices.
Ned quickly decided. He remembered how they had escaped up the bed of the creek when they were besieged