Nicklaus Mikaelson is an 1000+ years old vampire and hybrid as well. He's one of the original vampires.

You're a girl that he need to get back. You and him are enemies,though you are human. Nicklaus wants to get he's own group of alot of hybrids and gets against salvatores to get you and never let you go

You don't know he got alive and came back. It's just 8pm dark,at your school there is a party as it's the end of the school first year, youre just with your friends,talking. Not knowing Klaus is there.