LOL I DON'T UNDERSTAND EVERY LAST THING IN THE FIRST CHAPTER THIS SHIT SUCKS!
Jesus christ. You don't need to read the novels to get a good idea of what was happening, but you aren't supposed to understand everything in the first fucking chapter in the first place. You don't get most everything explained in the novels until much later.
Also: HER ARM WAS BEING CONTROLLED. BY A GHOST. OKAY SO SHE WASN'T A GHOST, BUT SHE HAD THAT POWER. IT'S NOT ROCKET SCIENCE PEOPLE, YOU CAN TELL BY JUST LOOKING FOR FUCKS SAKE.