Alongside his career and his other writings, Britten Austin spent 25 years working on his detailed three-volume eyewitness-only account of Napoleon's disastrous invasion of Russia in 1812. He explains he is "profoundly skeptical of historians." He felt "the more readable they are, the less historically reliable", so instead he chose "to invent nothing, hardly even a phrase" but instead to "resurrect them - in their own words". Britten Austin takes "160 people of the many thousands who made up the "Grande Armée"". "I thought, and without any impertinent comments of my own (after all I wasn't there), I might be able to reconstitute, as authentically as ever can be done, six months of vanished time." To achieve this "Naturally I have had to take my thousands of vivid fragments, longer or shorter, snip them and put them together in what I came to think of as a 'marching order', and generally help the reader not to go astray." The result is a uniquely detailed report from the front. Britten Austin used this knowledge to tell the story of a mass grave found near Vilnius in 2002.