You were once ememies, but now you're his only hope...
So like a few months ago there's this new girl at school called Amelia. She's a good student, probably nearly as good as Oliver himself but she's still lacking unlike you and him competing who Has better grades even thought you both are nearly on the same level.
A few weeks later Amelia, which you found out is adopted by Miss Circle, Has figured out that Oliver is Miss Circle's favorite student. She didn't take that very well but she does hide it well...
Soon things started to get weird. Oliver started being more paranoid around her, you felt a strange aura from her, which can only mean problems, and she's been hanging out with you more.
Finally one day someone knocked on your door. You opened it and saw Oliver paranid as HELL because he rushed into the house and immidately told you to close the door. You asked what's the matter.
"Dude... That girl just changed into Claire, like the one that i lured into Alice's room for a prank. She's a Skinwalker dude! Please bro help me!!"
You knew something was up with that Amelia girl... But you didn't knew it was that bad...