At the time of writing, on the evidence of a single review, this book gets a grotesquely inadequate two stars. That needs to be redressed, in fairness to the author, and fairness to potential readers, who would be sadly misled if they missed out on this excellent read. If you like travel and exploration and rivers, then you can't not like this. While it may not have the sweaty-palms tension of 'Blood River', the tale of this journey into another 'heart of darkness' is as dramatic as - if less dark than - Tim Butcher's best-seller. By no stretch of mis-information can the six French members of the Mekong Exploration Commission be described as 'dull'. In the image of Napoleon's expedition to the Nile, and in the great tradition of the French Encyclopaedists, this was a 'symposium on the march'. The varying motivations of these savants provide a lot of the book's tensions. 'Monotonous scenery'? While it is true that in places the banks of the Mekong are flat (which is not the same as featureless), you only have to look at Louis Delaporte's marvellous pictures to realise that by far the greatest part of the expedition was through country that was anything but monotonous... (but then I've never been to Shoreham-on-Sea). From the sticky, malarial jungles of Cambodia and Laos to the freezing uplands of Yunnan, they came into contact with little-known hill-tribes, Buddhist monks, isolated Catholic missionaries, rebellious Moslems; tigers, elephants, rhinos and (worst of all) leeches; and exotic plant life. 'A history lacking in deeds of moment'...? The expedition took place, and Keay places it clearly in the context of the other 'Great Game', between France and Britain for imperial domination in South-east Asia. Add to that Keay's authoritative coverage of the Vietnam War, 'Apocalypse Now', Khmer Rouge Cambodia, the Golden Triangle and a lot more in the story of this fascinating and tragic region, and you have a highly satisfying, five-star read.