When Lance Armstrong fought back from life-threatening cancer to win the 1999 Tour de France - the so-called Tour of Renewal - it seemed almost too good to be true. It was. Sunday Times journalist David Walsh was one of a small group who was prepared to raise awkward questions about Armstrongs seemingly superhuman feats.

And so began a 13-year battle to reveal the truth that finally ended in October 2012 when the cyclist was stripped of his seven Tour victories and banned from the sport for life. Walshs gripping and moving personal account of his struggles is a revealing insight into the murkier end of professional cycling - a place where having the right doctor can make all the difference and where there existed a conspiracy of silence.

As he shows, it never was about the bike. However, spurred on by a few brave people who were prepared to speak out in the hope of saving the sport they loved, Walsh continued to probe, and eventually he was vindicated when Armstrongs reputation was ruined. In this updated edition, covering Armstrongs confession to Oprah, Seven Deadly Sins takes the reader into a world of doping and lies, but shows that there is always hope for a better future.