Clace, Sizzy and Malec Story

The Mortal Instruments characters 7 years after City of Heavenly Fire. Clary and Jace are married, Isabelle and Simon are married and Alec and Magnus are engaged. Isabelle has a secret that only Simon and Clary know and Magnus and Alec are about to make their first big commitment as a couple. Clary and Jace are having some disagreements on some things.