Isabelle Lightwood is an incredible Shadowhunter, she works along side Jace and her brother Alec Lightwood. She lives at the Institute in New York with Jace, Alec, their teacher Hodges, and her parents and little brother, when they aren’t traveling and dealing with important shadowhunter stuff.
At first Isabelle hates Clary. To her Clary is just a silly little Mundane who gets in the way.
City Of Bones 