NEW YORK TIMES BESTSELLER • From bestselling author Susan Casey, an awe-inspiring portrait of the mysterious world beneath the waves, and the men and women who seek to uncover its secrets
“An irresistible mix of splendid scholarship, heart-stopping adventure writing, and vivid, visceral prose." —Sy Montgomery, New York Times best-selling author of The Soul of an Octopus
For all of human history, the deep ocean has been a source of wonder and terror, an unknown realm that evoked a singular, compelling question: What’s down there? Unable to answer this for centuries, people believed the deep was a sinister realm of fiendish creatures and deadly peril. But now, cutting-edge technologies allow scientists and explorers to dive miles beneath the surface, and we are beginning to understand this strange and exotic underworld:  A place of soaring mountains, smoldering volcanoes, and valleys 7,000...