<p>Geert Mak spent the year 1999 criss-crossing the continent, tracing the history of Europe from Verdun to Berlin, St Petersburg to Auschwitz, Kiev to Srebrenica. He set off in search of evidence and witnesses, looking to define the condition of Europe at the verge of a new millennium. <br><br>The result is mesmerising: Mak''s rare double talent as a sharp-eyed journalist and a hugely imaginative historian makes <i>In Europe </i>a dazzling account of that journey, full of diaries, newspaper reports and memoirs, and the voices of prominent figures and unknown players; from the grandson of Kaiser Wilhelm II to Adriana Warno in Poland, with her holiday job at the gates of the camp at Birkenau.<br><br>But Mak is above all an observer. He describes what he sees at places that have become Europe''s well-springs of memory, where history is written into the landscape. At Ypres he hears the blast of munitions from the Great War that are still detonated twice a day. In Warsaw he finds the point