*Takes place shortly after 'the city of heavenly fire' by Cassandra Clare * Jace and Clary plan on getting married . Clary and Izzy become Parabatai. Alec and Magnus are finally happy together . And everybody lives happily ever after? Right? Well unfortunately this is not a fairytale. Sebastian is far from Prince Charming in fact he is the devil, the king of hell. Sadly even death can't stop the devil himself. Disclaimer : most of the characters belong to Cassandra Clare. The shadowhunter world will remain. I just changed what happened with Simon but don't worry he's still in it ;)