Whether it was that the air-ship itself had increased its speed during those few moments of dense obscurity, or whether the madly whirling winds had taken a retrograde movement at that precise time, could only be a matter of conjecture; but the ominous fact remained.
The aerostat was fairly over the danger-line, and, despite all efforts being made to the contrary, was being drawn directly towards that howling, crashing, thundering mass of destructive energy.
Already the inmates felt themselves being sucked from the flying-machine, and instinctively tightened their grip upon hand-rail and floor, gasping and oppressed, breath failing, and ribs apparently being crushed in by that horrible pressure.
"Hold fast--for life!" pantingly screamed Professor Featherwit, as he strove in vain to check or change the course of his aeromotor, now for the first time beyond control of that master-hand.
A few seconds of soul-trying suspense, during which the flying-machine shivered from stem to stern, almost like a human creature in its death-agony, creaking and groaning, with shrill sounds coming from those expanded, curved wings, as the suction increased; then--A merciful darkness fell over those sorely imperilled beings, and the vessel itself seemed about to be overwhelmed by an avalanche of sand and dirt and mixed debris. Then came a dizzy, rocking lurch, followed by a shock which nearly cast uncle and nephews from their frantic holds, and the air-ship appeared to be whirled end for end, cast hither and yon, wrenched and twisted as though all must go to ruin together.
A blast as of superheated air smote upon them one moment, while in the next they were whirled through an icy atmosphere, then tossed dizzily to and fro, as their too-frail vehicle spun upward as though on a journey to the far-away stars.
A shrieking blast of wind served to briefly clear away the choking dust, affording the trio a fleeting glimpse of their immediate surroundings: hurtling sticks and stones, splintered tops of trees, shrubs with wildly lashing roots freshly torn from the bed of years, all madly spinning through a blinding, scorching, freezing mass of crazily battling winds, the different currents twining and weaving in and out, as so many hideous serpents at play.
A moment thus, then that horrid uproar grew still more deafening, and the air-ship was whirled high and higher, in a dizzy dance, those luckless creatures clinging fast to whatever their frenzied hands might clutch, feeling that this was the end of all.
Further sight was denied them. They were powerless to move a limb, save as jerked painfully by those shrieking currents.
Breath was taken away, and an enormous weight bore down upon them, threatening to produce a fatal collapse through their ribs giving way.
Upward whirled the flying-machine, powerless now as those wretched beings within its cunning shape, smitten sharply here and there by some of those ascending missiles, yet without receiving material injury; until a last shivering lurch came, ending in a sudden fall.
A dizzying swoop downward, but not to death and destruction, for the aerostat alighted easily upon what appeared to be a sort of air-cushion, and, though unsteady for a brief space, then settled upon an even keel.
"Cling fast--for life!" huskily gasped the professor, unwittingly repeating the caution which had last crossed his lips, which he had ever since been striving to enunciate, faithful to his guardianship over these, his sole surviving relatives.
"I don't--where are we?"
Waldo lifted his head to peer with half-blind eyes about them, in which action he was imitated by both brother and uncle; but, for a brief space, they were none the wiser.
All around the aeromotor rose a wall of whirling winds, seemingly impenetrable, apparently within reach of an extended arm, changing colour with each fraction of a second, hideously beautiful, yet never twice the same in blend or mixture.
A hollow, strangely sounding roar was perceptible; one instant coming as from the far distance, then from nigh at hand, causing the air-ship to quiver and tremble, as a sentient being might in the presence of a torturing death.
"Look--upward!" panted Bruno, a few seconds later, his face as pale as that of a corpse, in spite of the dirt and blotches of sticky mud with which he had been peppered during that dizzy whirl.
Mechanically his companions in peril obeyed, catching breath sharply, as they saw a clear sky and yellow sunshine far above,--so awfully far they were, that it seemed like looking upward from the bottom of an enormously deep well.
And then the marvellous truth flashed upon the brain of Phaeton Featherwit, almost robbing him of all power of speech. Still he managed to jerkily ejaculate:
"We're inside,--riding the--tornado--itself!"Then those whirling winds closed quickly above them, shutting out the sunlight, hiding the heavens from their view, enclosing that vehicle and its occupants, as they were borne away into unknown regions, within the very heart of the tornado itself!
Yet, incredible as it surely seems, no actual harm came to the trio or to their flying-machine as it swayed gently upon its airy cushion, although from every side came the horrid roar of destruction, while ever and anon they could glimpse a wrestling tree or torn mass of shrubbery whizzing upward and outward, to be flung far away beyond the vortex of electrical winds.
Once more came that awful sense of suffocation. That painted pall closed down upon them, robbing their lungs of air, one instant fairly crisping their hair with a touch of fire, only to send an icy chill to their veins a moment later.