"Yes, down to the street or ground, and probably you would be killed. And it is because of this power which the earth has of drawing to itself all things that are upon it, that you would not fly off into the air and keep on falling, falling, for no one knows how many miles. It is too hard a thing for you to understand much about now, but when you are older you shall learn more. But we have had a long enough lesson for this morning. We will walk about a little, and see if we can find some shells before we go in to breakfast."