In Underworld--the book of his Channel 4 TV series--he argues that far from springing out of nowhere some 6,000 or 7,000 years ago in Mesopotamia, civilisation has been with mankind for many millennia longer. With the aid of a geologist at Durham University, Hancock examines which coastal areas vanished beneath the sea as the ice melted at the end of the last Ice Age, a catastrophic inundation he finds in the Flood myths of most of the world's traditional religions. And then he goes diving and finds, in some cases, incontrovertible ruins; in other cases the piles of stone might well be natural rock formations, but Hancock argues for their human origins.

Hancock accepts that he is neither a historian, an archaeologist nor a geologist. Some of his arguments tend to be rather speculative, and some of his conclusions may well be wrong--it's not always a good thing to ignore the experts! But in this massive book--well over 700 pages--he does provide sufficient evidence for flooded ruins that ought to be studied by real scholars. And if a few cherished paradigms are overturned in the process, surely this is what science is all about. --David V Barrett

Synopsis
A physical and intellectual journey, a worldwide exploration diving for the underwater ruins of a lost civilization, this book follows clues in ancient scriptures and mythlogy and in the scientific evidence of the flood that swept the Earth at the end of the last Ice Age. This text explores the question of early humans swept away by the catastrpohe. Who were these populations - pre-civilised hunter-gatherers or more sophisticated peoples altogether? The text is written as a personal adventure involving the reader in the travels, the practicalities and the risks while developing the larger themes along the way, building up to the explosive revelation of a global mystery.