The Master Mind of Mars by Edgar Rice Burroughs
“The Master Mind of Mars” by Edgar Rice Burroughs, published in 1927, is a science fiction novel set on the planet Mars, known as Barsoom. On Mars, Ulysses Paxton, a soldier from Earth, becomes involved in the complex world of Ras Thavas, the “master mind” who is a master surgeon capable of transplanting brains between bodies.