Fan Casting Infernal Devices

tessa gray a mundane from nyc in the 1800s goes to england after her ant dies to live with her brother in london when on the way gets kidnapped by two menacing warlocks mrs.dark and ms. black and they force her to change and thats when she finds out that shes a warlock who can shapeshift and they tell her shes to marry the magister an evil mundane warlord who kills other mundanes and warlocks and shadowhunters using his infernal army of automatons and a handsome young man william herondale rescues her and brings her to an institute with jem his parabatai and jessamine,charlotte and henry who g on various adventures