Madison Lewis, the twin sister of Simon Lewis gets dragged into the world of Shadowhunters, Downworlders and demons when she bumps into a mysterious stranger and her best friend's mother goes missing. What she expected was to save Jocelyn and go back to her life, but when secrets are uncovered, her real identity revealed and an evil rogue Shadowhunter threatens to destroy her new world, what does she do? Read as secrets are uncovered, feeling develop and friendships tested. Jace x oc x Alec