The Jaguar was sorrowful, a gloomy presentiment seemed to warn him of a misfortune. This daring man, who carried out as if in sport the maddest and most venturesome deeds, now advanced reluctantly, hesitating and constantly looking about him suspiciously, and almost timidly. Assuredly, he feared no personal danger; what did he care for an attack? What alarm did he feel about dying? Peril was his element; the heated atmosphere of battle, the odour of powder intoxicated him, and made him feel strange delight; but at this moment Carmela was near him; Carmela, whom he had so miraculously found again, and whom he feared to lose again. This strong man felt his heart soften at the thought, hence he insisted on taking the rear guard, in order to watch more closely over the maiden, and be in a position to help her if necessary. The superior Commander had not dared to refuse the bold partisan this post, which he asked for as a favour. This condescension on the part of the Chief had terrible consequences, and was partly the cause of the events that happened a few hours later. The Texan troops, in spite of the various element of which they were composed, advanced, however, with an order and discipline that would have done honour to regulars. Don Felix Paz had thrown out to the right and left of the road flankers ordered to investigate the chaparral, and guarantee the safety of the route; but in spite of these precautions, whether the Mexicans were really ambushed in inaccessible places, or for some other reason, the flankers did not discover them, and the vanguard advanced at a pace which heightened the security of the main body, and gradually induced the Chiefs to relax their previous watchfulness. The vanguard reached the cross, and nothing had as yet happened in any way to trouble the march of the army. Don Felix, after allowing his cuadrilla to halt for twenty minutes, resolutely entered the road that led to the spot where the Mexicans had landed. From the cross to the Rio Trinidad was no great distance, and could be covered in less than two hours by troops marching at the ordinary pace. The road, however, after passing the cross, insensibly becomes narrower, and soon changes into a very confined track, in which three persons can scarce walk abreast. We have said that trembling prairies extend on either side of this road. We will explain, in a few sentences, what these trembling prairies are, which are met with in several parts of America, but principally in Texas and Louisiana. These prairies, if we may trust to the frequently false theories of science, have a similar organ to that of Artesian springs, for the earth does in one case what water does in the other. Through the action of geological dynamics, the earthy matter which constitutes the trembling prairies ascends to the surface of lakes and ponds, while in Artesian wells the water rushes up from the depths through the pressure of the strata by which it was held down.