Night came, and redder glowed the firelight in the gloom. They spoke of life, of love, of destiny; and over them seemed to brood the mystery of all that was to be. The very purpose of the universe enwrapped itself about their passion, and the untroubled stars kept vigils till the dawn. Daylight called them to begin the epic campaign they had mapped out--the rescue of a race. After a visit to the patriarch's grave, which they decked anew with blossoms and fresh leaves, they prepared for the journey in search of a suitable temporary home for the Folk. Nine o'clock found them once more on the wing. Stern laid a southerly course along the edge of the Abyss. He and Beatrice had definitely decided that the new home of humanity was not to be the distant regions of the East, involving so long and perilous a journey, but rather some location in the vast, warm, central plain of what had once been the United States. They judged they were now somewhere in the one-time State of Indiana, not far from Indianapolis. So much warmer had the climate grown that for some months to come at least the Folk could without doubt accustom themselves to the change from the hot and muggy atmosphere of the Abyss to the semitropic heat. The main object now was to discover suitable caves near a good water supply, where by night the Folk could prosecute their accustomed fisheries. Agriculture and the care of domestic animals by daylight would have to be postponed for some time, possibly for a year or more. Above all, the health of the prospective colonists must be safeguarded. It was not until nearly nightfall of the next day, and after stops had been made at the ruins of two considerable but unidentified towns--for fuel, as well as to fit up an electric search-light and hooded lamps to illuminate the instruments in the Abyss--that the explorers found what they were seeking. About half past five that afternoon they sighted a very considerable river, flowing westward down a rugged and irregular valley, in the direction of the chasm. "This can't be the Ohio," judged Stern. "We must have long since passed its bed, now probably dried up. I don't remember any such hilly region as this in the old days along the Mississippi Valley. All these formations must be the result of the cataclysm. Well, no matter, just so we find what we're after." "Where are we now?" she asked, peering downward anxiously. "Over what State--can you tell?" "Probably Tennessee or northern Alabama. See the change in vegetation? No conifers here, but many palms and fern-trees, and new, strange growths. Fertile isn't the name for it! Once we clear some land here, crops will grow themselves! I don't think we'll do better than this, Beta. Shall we land and see?" A quarter-hour later the Pauillac had safely deposited them on a high, rocky plateau about half a mile back from the edge of the river canyon. Stern, in his eagerness, was all for cave-hunting that very evening, but the girl restrained him.