How inappropriate it was to name our planet ‘Earth’, when quite clearly we should have called it ‘Ocean’. Water covers more than 70 per cent of our planet’s surface. From warm equatorial seas to ice-bound polar oceans, Into the Deep charts our exploration of Earth’s final frontier and its inhabitants as it descends from bright coral reefs to the eternal cold darkness of the abyss. It is a voyage that will astonish the reader, just as the latest deep sea discoveries regularly confound scientists.