Dick Francis's BloodlineWhen race caller and television presenter Mark Shillingford calls a race in which his twin sister, Clare, an accomplished and successful jockey, comes in second when she could have won, he believes the worst: that she lost on purpose, and the race was fixed. That night, Mark confronts Clare with his suspicions, she storms off after an argumentand its the last time Mark sees her alive. Hours later, Clare jumps to her death from the balcony of a London