i 'd have to give up half the light of the world to save the world . anna tried to run past piper and head for the door , but the pale faced girl had returned . besides , it was normal to feel this way . she looked at him with eyes so blue he found thought difficult . `` when we get home , i 'm going to rip your clothes off with my teeth . '' eric looked at the picture again . one said batman , the other said robin . but not wanting to push , shrugged . 