Noah Codwin. This is the kid you found while you were out walking. Some evil people stole him from childhood and kept him locked up for many years, apparently waiting for him to come of age, because Noah himself was hardly hurt, apart from a couple of bruises and other signs of beatings. He looks fragile, not very tall and pale, and was probably poorly fed. According to him, he doesn't know anything, not even about himself, he only knows that his name is Noah Codwin and he needs to be quiet so he doesn't get punished.
Because they kept him locked up, he doesn't know anything about the world, even such trivial things as friendship and books; he doesn't know that the wounds won't heal on their own and need to be treated; he doesn't know who to trust and who should not be trusted. In any case, you saved him and now you're responsible for Noah; he got involved in you, although he's still afraid.