"Just a sheer streak of luck," Stern remarked, as he stood looking at this huge piece of fortune with the girl. "Just a kindly freak of fate, that Van Amburg should have bought one of Edison's first sets of nickel-sheet books. "Except for the few sets of these in existence, here and there, not a book remains on the surface of this entire earth. The finest hand-made linen paper has disintegrated ages ago. And parchment has probably crinkled and molded past all recognition. Besides, up-to-date scientific books, such as we need, weren't done on parchment. We're playing into gorgeous luck with these cyclopedias, for everything I need and can't remember is in them. But it certainly was one job to sort those scattered sheets out of the rubbish-pile in the library and rearrange them." "Yes, that _was_ hard work, but it's done now. Come on out into the garden, Allan, and see if our crops have grown any during the night!" The grounds about the bungalow were a delight to them. Like two children they worked, day by day, to enlarge and beautify their holdings, their lands won back from nature's greed. Though wild fruits--some new, others familiar--and fish and the plentiful game all about them offered abundant food, to be had for the mere seeking, they both agreed on the necessity of reestablishing agriculture. For they disliked the thought of being driven southward, with the return of each successive winter. They wanted, if advisable, to be able to winter in the bungalow. And this meant some provision for the unproductive season. "It won't always be summer here, you know," Stern told her. "This Eden will sometime lie wet and dreary under the winter rains that I expect now take the place of snow. And the eternal curse of Adam--toil--is not yet lifted even from us two survivors of the fifteen hundred million that once ruled the earth. We, and those who shall come after, must have the old-time foods again. And that means work!" They had cleared a patch of black, virgin soil, in a sunny hollow. Here Stern had transplanted all the wild descendants of the vegetables and grains of other time which in his still limited explorations he had come across. The work of clearing away the thorns and bushes, the tangled lianas and tall trees, was severe; but it strengthened him and hardened his whip-cord muscles till they ridged his skin like iron. He burned and pulled the stumps, spaded and harrowed and hoed all by hand, and made ready the earth for the reception of its first crop in a thousand years. He recalled enough of his anthropology and botany from university days to recognize the reverted, twisted and stringy little degenerate wild-potato root which had once served the Aztecs and Pueblo Indians for food, and could again, with proper cultivation, be brought back to full perfection. Likewise with the maize, the squash, the wild turnip, and many other vegetable forms.