Summary: Before he became the Dark Lord, he had been student like any other.
Before it was a sin, it had been a house like any other.
Before it all had ripped her to pieces, she had been a girl like any other.
People change. Sometimes for the worse.
This is the story of Hogwarts when Tom Riddle was there, and how the lure of the Dark Arts led him, and the people he dragged in his wake, to madness.
This is very interesting. You have a great start, and I hope you continue this :)