Everlasting Summer: Loner

What will happen to a person locked in one place for five years? And ten? Lets focus on the psychological side of the issue. Will he go deep into himself, become a madman, or will he seek solace in self-development? Will he have bouts of apathy or outbursts of rage? And if Semyon spends even more years there? Lets say... a thousand? Why is he locked up in his solitary cell? Why is he still alone? How is the Owl arranged? And how ... how not to go completely crazy?