Alec Fray Shadowhunter retelling book one

What would happen if Jocelyn did take care of Alec during the Uprising when Maryse had asked her? So as a result, Jocelyn escaped with both Alec and Clary to live as mundanes?
This is the story of how Clary and Alec were raised as siblings and in the mundane world. How will they accept the truth of their past and move on from there?
This is an AU and I don't own Shadowhunters. I got this idea from a post from Pinterest so credit where credit is due.