Full of mystery and danger, the deep sea has long been a symbol of the great unknown. In this dramatic and thrilling account, acclaimed biologist and deep sea diver Bill Streever shows us the incredible adventures happening in earth's almost incomprehensibly vast oceans.

From the bottom of the Challenger Deep (the deepest known point in the ocean), to the earliest submarine technologies and exploratory deep dives, into the world of competitive breath-hold divers and the riskiest thrill seekers on the planet, In Oceans Deep is a human history, and a natural history of the earth's last true frontier. With treasure ship wrecks, the echoing pings of trapped submariners, and the vast expanse of otherworldly robots and oil rigs that dominate the oceanic landscape, In Oceans Deep is a rare and fascinating trip to the wild, strange, night-dark place that lies beneath the waves.