From the Institute, isabelle was returning with ian: to their respective dorms. Ian remembered Nathaniel's words back at the institute
" Usually our shadowhunters are trained from kids. But in your case, you have to start your training now and it maybe a little difficult adding to the fact that you have to live as a student. Let's do it this way, Isabelle will be your teacher. In the meantime, choose a unit you want to work in in the institute. You don't have to decide immediately, You can take your time."
"I've decided already" Ian contined by saying "I choose the research & development unit".
"Pity, who knows, we might make a good team in the combat unit" Isabelle said.
"It's his choice, don't try to change his mind" Isaac said and continued "I never got to properly introduce myself, my name is Isaac, Isabelle's brother."
Hitting him on his arm Isabelle pouted and complained "why ruin my plans, I was going to shock him with that."
"Well that's it, You better get back to your dorms" Nathaniel interrupted. He bade them goodnight and they all went their ways.
Isabelle gave him a book and said "Here start with this, I'll check your progress after two days. This book will teach how to activate your core". He accepted the book, thanked her and bade her goodnight then he returned to his room. He kept the book somewhere, He was to tired to do the reading currently. He fell asleep not long after he fell on his bed.