"From New York Times 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 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...

The riveting story of the history-making mission to reach the bottom of all five of the world's oceans - the ultimate frontier of our planet.Humankind has explored every continent on earth, climbed its tallest mountains, and gone into space. But the largest areas of our planet remain a mystery: the deep oceans. At over 36,000 feet deep, these areas closest to earth's core have remained nearly impossible to reach--until now.Technological innovations,...

Monday with a mad genius: Jack and Annie travel 500 years back in time to Florence, Italy, and spend a day helping Leonardo da Vinci in the hope of learning another secret of happiness. Dark day in the deep sea: When eight-year-old Jack and his seven-year-old sister, Annie, join a group of nineteenth-century explorers aboard the H.M.S. Challenger, they learn about the ocean, solve the mystery of its fabled sea monster, and gain compassion for their...