Dick Francis's Bloodline

The narrative unfolds as Mark Shillingford grapples with the shocking possibility that his twin sister, Clare, intentionally lost a crucial race, raising suspicions of a fix. As a race caller and television presenter, Mark's world is turned upside down by this revelation, prompting him to delve into the murky depths of the racing industry. The story explores themes of trust, betrayal, and the complexities of sibling relationships against the backdrop of competitive horse racing.