Fourth Estate, London, 2010. Wear marks to cover, slight yellowing to page edges.

When Michela Wrong's Kenyan friend John Githongo appeared one cold February morning on the doorstep of her London flat, carrying a small mountain of luggage and four trilling mobile phones he seemed determined to ignore, it was clear something had gone very wrong in a country regarded until then as one of Africa's few budding success stories. Two years earlier, in the wave of euphoria that followed the election defeat of long-serving President Daniel arap Moi, John had been appointed Kenya's new anti-corruption czar. In choosing this giant of a man with a booming laugh, respected as a longstanding anti-corruption crusader, the new government was signaling to both its own public and the world at large that it was set on ending the practices that had made Kenya an international by word for sleaze. Now John was on the run, having realised that the new administration, far from breaking with the past, was using near identical techniques to pilfer public funds. John's tale, which has all the elements of the political thriller, is the story of how a brave man came to make a lonely decision with huge ramifications.