9 years later....................
Mason is 10 years old now and he is in the training room with his Uncle Alec traning to be a shadowhunter then his mum and dad came in to see how he was doing and they were so proud off him on how much he is growing up.
one day he did his fianl test at the clave and then before they new it was time for his rune ceromy and Jace and Clary were so sad that there little boy is already having his rune ceromny.
Once that happened he had to trainning even hard which he did not like but his trainner was his uncle Alec.
One day Clary was in the bathroom threw up and Jace came to held his Wife hair and she said once was done i need fresh air so i am going to go and see Issy and Simon and Jace said okay she went to buy a pregancy test and took it to Simon and Issy house.
She took it and it came back postive and she was happy and she went back and told Jace and he was happy and then after Mason tranning he went to see his mum and dad in there office and they told him the news and he was so happy and he said i can't wait to be a big brother.
Clary is starting to show and she still does not want to know what she having because she want it to be surprise.
Clary is also 7 months pregnant
One day Issy, Jace and Alec were on a mission and Clary went into labour and Issy felt it and then Jace got a phone call from Mason.
Jace: hey son is everything okay
Mason: Mum in labour dad come quick
Jace: i am on my way.
Jace, Alec and Issy ran back to the institute and when they got there Clary had already had the baby it was a girl and Jace was so happy but sad that he missed it but then they sat and picked a name and they decided to call there little girl.
Emma Jocelyn Herondale
and when they told everyone they were also happy about the name and Mason is so happy to be a big brother.