An era has ended. A fortress must endure. This is the definitive account of the most scrutinized succession in modern business.

For over six decades, Warren Buffett built Berkshire Hathaway into a global investment powerhouse, co-piloted by the late Charlie Munger. Now, with the transition to Greg Abel as CEO, the long-anticipated handover is complete.

This book is a deep, dual biography of an enduring legacy and the quiet competence required to sustain it. It meticulously deconstructs the Buffett-Munger philosophy—exploring how principles like Economic Moats and Owner Earnings compounded capital for generations—and traces the methodical rise of Abel, the Architect of Berkshire Energy and the steward chosen to preserve the company's unique, decentralized culture.

Beyond the corporate transition, the book analyzes how this fortress of value confronts the challenges of a Quantum Revolution driven by AI, the dominance of tech titans like Apple and Amazon, and the high-speed volatility of modern markets. It also pulls back the curtain on the "Shadow Economy," mapping the political influence and power networks of finance giants like Citadel and Bridgewater.

The Oracle's Final Act is an essential guide for any investor or executive, proving that in a world of accelerating change, integrity, and patience remain the most powerful forms of capital.

The legacy is set. The baton is passed. The future of the world's most unique company depends on a new kind of sober genius.