(Not Got A Title Yet!!)

My name is Erica Deen, I'm seventeen, and I have been having really strange dreams where I am being chased by a (rather large) dog-like creature... except it's a lot scarier, with black fur, dark red eyes and really fierce-looking teeth. My recent dream had me bringing something rather strange back with me... a bracelet... I don't know, perhaps there is a split in the universe because it certainly defies the laws of physics right? Although I'm pretty certain that it wasn't the only thing I let through...
In my 'real' life I seem normal with my normal school-life and somewhat normal friends... except, when we get a new transfer student I know I've more or less screwed up somewhere because this student, I've seen his silver eyes and otherworldly beauty before...
In my dream. What have I done?