And Tzapotecans and women, arrieros and servants, ran about in the utmost terror and confusion, with cries of "Vamos, paso redoblado! Off with us, or we are all lost, man and beast," and saddling, packing, and scrambling on their mules. And before Rowley and I knew where we were, they tore us away from our iguana and coffee, and hoisted and pushed us into our saddles. Such a scene of bustle and desperate hurry I never beheld. The place where the encampment had been was alive with men and women, horses and mules, shouting, shrieking and talking, neighing and kicking; but with all the confusion there was little time lost, and in less than three minutes from the first alarm being given, we were scampering away over stock and stone, in a long, wild, irregular sort of train.

The rapidity and excitement of our ride seemed to have the effect of calming our various sufferings, or of making us forget them; and we soon thought no more of the fever, or of stings or musquitto bites. It was a ride for life or death, and our horses stepped out as if they knew how much depended on their exertions.

In the hurry and confusion we had been mounted on horses instead of our our own mules; and splendid animals they were. I doubt if our Virginians could beat them, and that is saying a great deal. There was no effort or straining in their movements; it seemed mere play to them to surmount the numerous difficulties we encountered on our road. Over mountain and valley, swamp and barranca, always the same steady surefootedness—crawling like cats over the soft places, gliding like snakes up the steep rocky ascents, and stretching out with prodigious energy when the ground was favourable; yet with such easy action that we scarcely felt the motion. We should have sat in the roomy Spanish saddles as comfortably as in arm-chairs, had it not been for the numerous obstacles in our path, which was strewed with fallen trees and masses of rock. We were obliged to be perpetually stooping and bowing our heads to avoid the creeping plants that swung and twined and twisted across the track, intermingled often with huge thorns as long as a man's arm. These latter stuck out from the trees on which they grew like so many brown bayonets; and a man who had run up against one of them, would have been transfixed by it as surely as though it had been of steel. We pushed on, however, in Indian file, following the two guides, who kept at the head of the party, and making our way through places where a wild-cat would have difficulty in passing; through thickets of mangroves, mimosas, and tall fern, and cactuses with their thorny leaves full twenty feet long; the path turning and winding all the while. Now and then a momentary improvement in the nature of the ground enabled us to catch a glimpse of the whole column of march. We were struck by its picturesque appearance, the guides in front acting as pioneers, and looking out on all sides as cautiously and anxiously as though they had been soldiers expecting an ambuscade; the graceful forms of the women bowing and bending over their horses' manes, and often leaving fragments of their mantillas and rebozas on the branches and thorns of the labyrinth through which we were struggling. But it was no time to indulge in contemplation of the picturesque, and of this we were constantly made aware by the anxious vociferations of the Mexicans. "Vamos! Por Dios, vamos!" cried they, if the slightest symptom of flagging became visible in the movements of any one of the party; and at the words, our horses, as though gifted with understanding, pushed forward with renewed vigour and alacrity.

On we went—up hill and down, in the depths of the valley and over the soft fetid swamp. That valley of Oaxaca has just as much right to be called a valley as our Alleghanies would have to be called bottoms. In the States we should call it a chain of mountains. Out of it rise at every step hills a good two thousand feet above the level of the valley, and four or five thousand above that of the sea; but these are lost sight of, and become flat ground by the force of comparison; that is, when compared with the gigantic mountains that surround the valley on all sides like a frame. And what a splendid frame they do compose, those colossal mountains, in their rich variety of form and colouring! here shining out like molten gold, there changing to a dark bronze; covered lower down with various shades of green, and with the crimson and purple, and violet and bright yellow, and azure and dazzling white, of the millions of paulinias and convolvoluses and other flowering plants, from amongst which rise the stately palm-trees, full a hundred feet high, their majestic green turbans towering like sultans' heads above the luxuriance of the surrounding flower and vegetable world. Then the mahogany-trees, the chicozapotes, and again in the barrancas the candelabra-like cactuses, and higher up the knotted and majestic live oak. An incessant change of plants, trees, and climate. We had been five hours in the saddle, and had already changed our climate three times; passed from the temperate zone, the tierra templada, into the torrid heat of the tierra muy caliente. It was in the latter temperature that we found ourselves at the expiration of the above-named time, dripping with perspiration, roasting and stewing in the heat. We were surrounded by a new world of plants and animals. The borax and mangroves and fern were here as lofty as forest-trees, whilst the trees themselves shot up like church steeples. In the thickets around us were numbers of black tigers—we saw dozens of those cowardly sneaking beasts—iguanas full three feet long, squirrels double the size of any we had ever seen, and panthers, and wild pigs, and jackals, and apes and monkeys of every tribe and description, who threatened and grinned and chattered at us from the branches of the trees. But what is that yonder to the right, that stands out so white against the dark blue sky and the bronze-coloured rocks? A town—Quidricovi, d'ye call it?

We had now ridden a good five or six leagues, and begun to think we had escaped the aguas or deluge, of which the prospect had so terrified our friends the Tzapotecans. Rowley calculated, as he went puffing and grumbling along, that it wouldn't do any harm to let our beasts draw breath for a minute or two. The scrambling and constant change of pace rendered necessary by the nature of the road, or rather track, that we followed, was certainly dreadfully fatiguing both to man and beast. As for conversation it was out of the question. We had plenty to do to avoid getting our necks broken, or our teeth knocked out, as we struggled along, up and down barrancas, through marshes and thickets, over rocks and fallen trees, and through mimosas and bushes laced and twined together with thorns and creeping plants—all of which would have been beautiful in a picture, but was most infernally unpoetical in reality.

"Vamos! Por la Santissima Madre, vamos!" yelled our guides, and the cry was taken up by the Mexicans, in a shrill wild tone that jarred strangely upon our ears, and made the horses start and strain forward. Hurra! on we go, through thorns and bushes, which scratch and flog us, and tear our clothes to rags. We shall be naked if this lasts long. It is a regular race. In front the two guides, stooping, nodding, bowing, crouching down, first to one side, then to the other, like a couple of mandarins or Indian idols—behind them a Tzapotecan in his picturesque capa, then the women, then more Tzapotecans. There is little thought about precedence or ceremony; and Rowley and I, having been in the least hurry to start, find ourselves bringing up the rear of the whole column.

"Vamos! Por la Santissima! Las aguas, las aguas!" is again yelled by twenty voices. Hang the fools! Can't they be quiet with their eternal vamos? We can have barely two leagues more to go to reach the rancho, or village, they were talking of, and appearances are not as yet very alarming. It is getting rather thick to be sure; but that's nothing, only the exhalations from the swamp, for we are again approaching one of those cursed swamps, and can hear the music of the alligators and bullfrogs. There they are, the beauties; a couple of them are taking a peep at us, sticking their elegant heads and long delicate snouts out of the slime and mud. The neighbourhood is none of the best; but luckily the path is firm and good, carefully made, evidently by Indian hands. None but Indians could live and labour and travel habitually, in such a pestilential atmosphere. Thank God! we are out of it at last. Again on firm forest ground, amidst the magnificent monotony of the eternal palms and mahogany-trees. But—see there!

A new and surpassingly beautiful landscape burst suddenly upon our view, seeming to dance in the transparent atmosphere. On either side mountains, those on the left in deep shadow, those on the right standing forth like colossal figures of light, in a beauty and splendour that seemed really supernatural, every tree, every branch shining in its own vivid and glorious colouring. There lay the valley in its tropical luxuriance and beauty, one sheet of bloom and blossom up to the topmost crown of the palm-trees, that shot up, some of them, a hundred and fifty and a hundred and eighty feet high. Thousands and millions of convolvoluses, paulinias, bignonias, dendrobiums, climbing from the fern to the tree trunks, from the trunks to the branches and summits of the trees, and thence again falling gracefully down, and catching and clinging to the mangroves and blocks of granite. It burst upon us like a scene of enchantment, as we emerged from the darkness of the forest into the dazzling light and colouring of that glorious valley.

"Misericordia, misericordia! Audi nos peccadores! Misericordia, las aquas!" suddenly screamed and exclaimed the Mexicans in various intonations of terror and despair. We looked around us. What can be the matter? We see nothing. Nothing, except that from just behind those two mountains, which project like mighty promontories into the valley, a cloud is beginning to rise. "What is it? What is wrong?" A dozen voices answered us—