"In Underland, Macfarlane delivers his masterpiece: an epic exploration of the Earth's underworlds as they exist in myth, literature, memory, and the land itself. He takes us on an extraordinary journey into our relationship with darkness, burial, and what lies beneath the surface of both place and mind. Traveling through 'deep time'--the dizzying expanses of geologic time that stretch away from the present--he moves from the birth of the universe...