"Banker" by Dick Francis is a gripping thriller that dives into the world of horse racing. The story follows Tim Ekaterin, a financial expert who works with other people's money and is under immense pressure to make wise investments. When he decides to invest £5 million in a champion racehorse, he finds himself in trouble when the horse's offspring are born with birth defects. Tim begins to question the events at the stable and discovers that there may be more going on behind the scenes than meets the eye. With a captivating plot and unexpected twists, "Banker" keeps readers on the edge of their seats until the very last page.