Chapter 1

* I'm writing this on a phone so bare with me if there a spelling or grammatical errors*

All the City of Heavenly fire books are pretty much the same so I'm going to try my best to make this one different :)

Mayrse and Robert are keeping something from the Lightwood siblings, something that links to Sebastian. Sebastian, is not only trying to rule hell, he's bringing help with him. Somebody who knows the shadowhunter world inside and out.

Betrayal will come from the people you least expect, and things will happen that will determine the future of ever shadowhunter ever lived.