My never ending dream

This story is about a girl named Rachel Helms who has a pocket watch that isn't quite normal. This pocket watch changes her life and everything she has ever known. But how? What if I told you this pocket watch is magical and protects her from harms way when she was going to die. Will she ever figure out what it does? Or will she just get rid of it? [it has a hint of violence so i went ahead and put it as mature, if you know weather it has to be or i can change it back please let me know]