18 - Planet of the Damned by Harry Harrison

In a world where extraordinary individuals emerge only once in a generation, Brion Brandd possesses a remarkable gift an enhanced sense of empathy. This unique ability propels him to victory in the Twenties, a prestigious competition showcasing the most brilliant minds on Anvhar. However, his triumph is short-lived as he is thrust into the chaotic realm of Dis, a planet on the brink of nuclear devastation. To save both worlds, Brandd must navigate treacherous negotiations with a menacing blockade, delve into the dark underbelly of Dis, and unravel the enigma of the merciless magter. Summary by Great Plains