With the war finally over everyone is moving on and trying to forget it until rumours of a cup emerge. Said cup is rumoured to give immortality to people who drink from it. Now it's a race between shadowhunters and wizards to try get it first. Two things neither realise: that the other exist& want it and that Sibuna are already protecting it. With the 3 competing what can go wrong?
What would have happened if Clary had stayed when Jocelyn had asked her to in CoB and had been there when Valentine arrived. When her suddenly not-so-dead father (apparently) turns up and kidnapps Clary and her mother and drags them back into a world Clary never knew existed she is forced to confront truths she never knew and to change her whole lifestyle forever (all usual ships)