From an acclaimed historian comes an epic tale of power and betrayal: the dual biography of Richard II and Henry IV, two cousins whose tumultuous reigns shaped the course of English history. Richard of Bordeaux and Henry of Bolingbroke, cousins born just three months apart, were ten years old when Richard became king of England. They were thirty-two when Henry deposed him and became king in his place. Now, the story behind one of the strangest and most fateful events in English history (and the inspiration behind Shakespeare's most celebrated history plays) is brought to vivid life by the acclaimed author of Blood and Roses, Helen Castor. Castor showcases the enigmatic Richard II, a king who clung to his divine right to rule but lacked the leadership to sustain his throne. His reign, marred by narcissism and disdain for constitutional principles, spiraled into chaos, ultimately leading to his downfall at the hands of his cousin. Enter Henry IV--a stark contrast. Castor portrays him as a chivalric hero, a leader who inspired loyalty and camaraderie. Yet, his journey to the throne was anything but smooth, plagued by rebellion and political turmoil. What makes Castor's account so compelling is her ability to weave these personal stories into the bigger picture. She explores the turbulent themes of masculinity, identity, and the fragile nature of power, offering a timely reminder of the perils of self-obsessed rulers--and the challenges faced by those who follow in their wake. Richly researched and beautifully written, The Eagle and the Hart isn't just a history book--it's a gripping tale of leadership, legacy, and the timeless struggle for power. For anyone fascinated by medieval England or the universal dynamics of power and ambition, this is not to be missed.