Mr. Humble and Dr. Butcher by Brandy Schillace

In the early days of the Cold War, a spirit of desperate scientific rivalry birthed a different kind of space race: not the race to outer space that we all know, but a race to master the inner space of the human body. While surgeons on either side of the Iron Curtain competed to become the first to transplant organs like the kidney and heart, a young American neurosurgeon had an even more ambitious thought: Why not transplant the brain?