The only consolation in such circumstances was to sleep, and accordingly each one lay down and endeavored to find in slumber a temporary forgetfulness of his discomforts and his fatigues. The night was stormy, and the planks of the rancho cracked before the blast as if every instant they would give way. The poor horses outside, exposed to all the inclemency of the weather, were making piteous moans, and their masters were suffering quite as much inside the ruined RANCHO. However, sleep overpowered them at length. Robert was the first to close his eyes and lean his head against Glenarvan’s shoulder, and soon all the rest were soundly sleeping too under the guardian eye of Heaven.

The night passed safely, and no one stirred till Thaouka woke them by tapping vigorously against the RANCHO with his hoof. He knew it was time to start, and at a push could give the signal as well as his master. They owed the faithful creature too much to disobey him, and set off immediately.

The rain had abated, but floods of water still covered the ground. Paganel, on consulting his map, came to the conclusion that the RIOS Grande and Vivarota, into which the water from the plains generally runs, must have been united in one large bed several miles in extent.

Extreme haste was imperative, for all their lives depended on it. Should the inundation increase, where could they find refuge? Not a single elevated point was visible on the whole circle of the horizon, and on such level plains water would sweep along with fearful rapidity.

The horses were spurred on to the utmost, and Thaouka led the way, bounding over the water as if it had been his natural element. Certainly he might justly have been called a sea-horse—better than many of the amphibious animals who bear that name.

All of a sudden, about ten in the morning, Thaouka betrayed symptoms of violent agitation. He kept turning round toward the south, neighing continually, and snorting with wide open nostrils. He reared violently, and Thalcave had some difficulty in keeping his seat. The foam from his mouth was tinged with blood from the action of the bit, pulled tightly by his master’s strong hand, and yet the fiery animal would not be still. Had he been free, his master knew he would have fled away to the north as fast as his legs would have carried him.

“What is the matter with Thaouka?” asked Paganel. “Is he bitten by the leeches? They are very voracious in the Argentine streams.”

“No,” replied the Indian.

“Is he frightened at something, then?”

“Yes, he scents danger.”