Sorry for misunderstanding, i meant to say that i don`t like that perspective when main protagonist kills and rapes everyone while he still 14 years old child. And first commentator adviced to read "The Broken Empire" trilogy of fantasy novels written by  Mark Lawrence where you get exactly this nonsense.

End Master, thank you for such a quick reply and profound advice, especially from such a refined artist of the word like you. 

I`ve also read The Monk by Matthew Lewis and it was pretty close to what i am searching for. 

I really wanted to, but the main character 14 years old - No -, it`s just way beyond by capabilities of imagination. Too fancy. 

Can anyone help me to find a story with such scheme of unfolding truly villainous main character? I`ve read some stories on this site that provide a vague opportunity to become total evil like in Necromancer, Ground Zero and Eternal but is this all? Does anyone know even a hint of evil main character in any other story on this site?

From ordinary literature, the most vivid example of what i`m searching is Darth Bane trilogy by Drew Karpyshyn.