Patricia Lauber

Today nearly everybody knows that the earth is round. But long ago, people were sure the earth was flat. They thought it was flat because it looked flat. It still does.

Secrets of the Cavern Below New Zealand, in the far south of the world, a handful of tiny islands lies scattered in the Pacific. No one lives there, for the islands are scarcely more than outcroppings of rock. Bleak, wind-swept, and lonely, they are pinpoints in a mighty ocean. Their only...