Katy Fray is Clary's older Twin sister and is one of the brightest bubbliest girls you'd met. Always seeing the good where others may not yet is fiercer than any dragon when it comes to protecting Clary. Though seeing good may become harder after on her 18th birthday her life crashes around her. Can she survive the challenges of this new world and home? Will love be worth the hurt?

She's a total sweetheart and without a doubt one of the most kindest, happiest and curious girls you'd ever meet. The things about her is she unknowingly writes true tales from another world (Shadow world) but even though she writes dark things she always sees the light; She is the light. On Her and Clary's 18th they're thrown into a world she only thought of as fiction.