 Why don't Eric and Nada build a shelter first?
It is especially important because it stylistically forecast a later trend to accept the background for granted, regardless of the quantity of wonders, and proceed with the story. Nada Stokes-Harding was also an author. But they were all filled up two hundred years ago. It has a thick, cloudy atmosphere, and low, rainy forests. Such a thing would be impossible with radio apparatus because even with the best beam transmission, all but a tiny fraction of the power is lost, and power is required to rebuild the atoms. In five more minutes their car had whipped up to the base of another building, in the business section, where there was no room for parks between the mighty structures that held the unbroken glass roofs two hundred stories above the concrete pavement.
 They are looking for flint to make a fire.
 They are looking for dry sticks to rub together.  They are certain they will find tools.  They are looking for flint to make a fire.  They are looking for a cave.