After a night of demon fighting at Pandemonium, Izzy and Clary return to see a vision from only the worst of their nightmares. They run away, vowing never to return. Once they become parabatai they are an unstoppable pair, until it comes to returning to the institute the vow to never go back to again might be broken. They say they have moved on, but will Simon and Jace be able to hold the key to their hearts once again or will love strong enough to survive hell, literally, be shattered by three words to the wrong person? In this story I will do the chapters in multiple characters POV. A The Mortal Instruments Fanfiction in which the majority of the characters belong to the wonderful Cassandra Clare... For now!