La Cité des ténèbres
The Mortal Instruments is a series of six young adult fantasy novels written by American author Cassandra Clare, the last of which was published on May 27, 2014. "The Mortal Instruments" is chronologically the third series of a planned five in "The Shadowhunter Chronicles" but was the first one published. It follows Clarissa Fray, who interacts with a group of Nephilim known as Shadowhunters while also discovering her own heritage and her family history. The Shadowhunters protect the world of mundane/human people, who are also called mundanes or "mundies", from dark forces beyond their world.