By the glare of the flames, they were immediately recognized by Paganel, as the ferocious species peculiar to America, called CAIMANS in the Spanish territories. About ten of them were there, lashing the water with their powerful tails, and attacking the OMBU with the long teeth of their lower jaw.
At this sight the unfortunate men gave themselves up to be lost. A frightful death was in store for them, since they must either be devoured by the fire or by the caimans. Even the Major said, in a calm voice:
"This is the beginning of the end, now."
There are circumstances in which men are powerless, when the unchained elements can only be combated by other elements. Glenarvan gazed with haggard looks at the fire and water leagued against him, hardly knowing what deliverance to implore from Heaven.
The violence of the storm had abated, but it had developed in the atmosphere a considerable quantity of vapors, to which electricity was about to communicate immense force. An enormous water-spout was gradually forming in the south-- a cone of thick mists, but with the point at the bottom, and base at the top, linking together the turbulent water and the angry clouds. This meteor soon began to move forward, turning over and over on itself with dizzy rapidity, and sweeping up into its center a column of water from the lake, while its gyratory motions made all the surrounding currents of air rush toward it.
A few seconds more, and the gigantic water-spout threw itself on the OMBU, and caught it up in its whirl. The tree shook to its roots. Glenarvan could fancy the caimans' teeth were tearing it up from the soil; for as he and his companions held on, each clinging firmly to the other, they felt the towering OMBU give way, and the next minute it fell right over with a terrible hissing noise, as the flaming branches touched the foaming water.
It was the work of an instant. Already the water-spout had passed, to carry on its destructive work elsewhere. It seemed to empty the lake in its passage, by continually drawing up the water into itself.
The OMBU now began to drift rapidly along, impelled by wind and current. All the caimans had taken their departure, except one that was crawling over the upturned roots, and coming toward the poor refugees with wide open jaws. But Mulrady, seizing hold of a branch that was half-burned off, struck the monster such a tremendous blow, that it fell back into the torrent and disappeared, lashing the water with its formidable tail.
Glenarvan and his companions being thus delivered from the voracious SAURIANS, stationed themselves on the branches windward of the conflagration, while the OMBU sailed along like a blazing fire-ship through the dark night, the flames spreading themselves round like sails before the breath of the hurricane.
CHAPTER XXVI THE RETURN ON BOARD
FOR two hours the OMBU navigated the immense lake without reaching _terra firma_. The flames which were devouring it had gradually died out. The chief danger of their frightful passage was thus removed, and the Major went the length of saying, that he should not be surprised if they were saved after all.
The direction of the current remained unchanged, always running from southwest to northeast. Profound darkness had again set in, only illumined here and there by a parting flash of lightning. The storm was nearly over. The rain had given place to light mists, which a breath of wind dispersed, and the heavy masses of cloud had separated, and now streaked the sky in long bands.
The OMBU was borne onward so rapidly by the impetuous torrent, that anyone might have supposed some powerful locomotive engine was hidden in its trunk. It seemed likely enough they might continue drifting in this way for days. About three o'clock in the morning, however, the Major noticed that the roots were beginning to graze the ground occasionally, and by sounding the depth of the water with a long branch, Tom Austin found that they were getting on rising ground. Twenty minutes afterward, the OMBU stopped short with a violent jolt.