C512 Lunatic(part iii)

Kroyev's life was filled with legends. When Bai Xiaohei first heard of Kroyev's interest in biology, he showed it when he was thirteen years old in school, and when he first participated in the biology class, he was different from the other students. He not only tested the reaction of the nerve and muscle with electric shock, he also tested the reaction of the brain and retina with electric shock