Jem Carstairs is a character from The Infernal Devices. He is also in The Mortal Instruments and The Dark Artifices. Also is in short stories as well. All Written by Cassandra Clare. He is my favorite character. <3 #nocc #jem #jemcarstairs #themortalinstruments #theinfernaldevices #cassandraclare #favoritecharacter #sims4 I made him twice. If you read the books you would understand. LOL. Feel free to download if you love Jem as much as I do. <33