Alright so here is my Mortal Instruments/ Percy Jackson crossover challenge. I would do this but I have no time to write due to work and university. The Basic plot is that the 7 demigods (plus Nico, Rachel if you want, and Reyna.) Meet the Shadowhunters (Clary, Maia, Izzy, Simon, Alec, Izzy and Alec's parents if you want I can't remember their names off the top of my head, Jace, and Magnus) and after a misunderstanding, which was making them fight each other, they all have to work together to stop Lilith. Here are the rules.

1.) Canon Pairings

2.) No OC's

3.) none of the Shadowhunters can be Demigods, as well as the Demigods can't be shadowhunters or (Is it me or whenever I try to read a Percy Jackson Mortal Instruments crossover they consist of one of the shadowhunters being a demigod, or a demigod being a shadowhunter.)

4.) Set after Blood of Olympus, and City of Heavenly Fire.

5.) The Demigods, and Shadowhunters must all go to each other's bases of operations (By that I mean Camp Half Blood and Jupiter, and The Institute as well as Idris.)

6.) I keep thinking that in the beginning none of the Demigods would get along with Jace due to his arrogance, "Humility is for ugly people" that and I keep thinking that him and Percy would be arguing and fighting with each other over what to do then in the end they wouldn't be buddy buddy, but more like they have gained each other's respect since they have both have gone through so much and still are alive and have found someone to care about. Please add this in

7.) Each group must fight monsters from each other's worlds meaning that the demigods must fight demons and downworlders, vice versa for the shadowhunters.

8.) If you want Shadowhunters to meet some of the Demigods godly parents that is up to you.