Spoilers: Canon up until New Moon, AU from there on out. There could be possible mentions of other parts of Eclipse and BD if they get added.
Summary: Sometimes the choices we make, to save someone, condemn them to what we sought to avoid. To protect the one he loves, Edward must leave Bella, forever. When realizing his mistake, Edward returns to try and save his relationship with Bella only to discover that she has gone missing. Can the one mistake erase an eternity of love?