“Oh, why?” cried both girls.

“Because of the absence of Indians. Consider what an ideal site this would be for a colony of savages. Plenty of fish, birds and oysters—sand—even a few level strips which might be cultivated—if the South American Indian ever does till the land. The logic of the situation is clear. Our refuge is inaccessible. That is just the difference between romance and reality. In the fairy tale, once you slay the dragons guarding the enchanted palace the remainder is a compound of nectar and kisses. In real life, having stormed the fortress, you find yourself besieged.”

None disputed his conclusions. They were learning to think like him, and each had been struck by the virgin solitude of this land-locked sea-lake, which must compare favorably with the most fertile and exceedingly scarce localities of the kind in an area of many scores of thousands of square miles.

“Anyhow, while you finish your pipe, it’s up to me to fix the fire,” said Sturgess blithely, leaping to his feet, and beginning to arrange a number of big flat stones around and above a pile of glowing charcoal in such wise that rain could not extinguish it, and a few twigs placed among the embers next morning would quickly burst into a blaze.

They had taught themselves these minor aids to comfort. Madge had constructed a very creditable field oven, and Nina, with a bit of sharpened wire and a supply of dried sinews, could sew a skin as a cobbler stitches the sole on to a boot. Physically all four were in splendid condition, so it was a sheer impossibility that they should remain downcast in spirit. Maseden knew that quite well when he recited the trials they must yet face and conquer. He addressed them as co-workers, not as pampered young people who must be humored into putting forth the necessary efforts if they would win through finally.

They slept that night as soundly as though the morning’s tribulation was something they had read in a book. Rain pounded on their shelter, but it was roofed with pine branches above the planks, and not a drop entered. They awoke into a world of blue sky and sunshine, and, after breakfasting on oysters, cold fowl, and good water, spent an idle hour in watching the tidal race from the north.

Then, after tending the fire, they set off on a tour of the shore, meaning to note every scrap of wreckage which might be of value. Moreover, Maseden was specially anxious to have a peep at the southern exit.

And thus they made the great discovery.