Question: is there a book 7 of the mortal instruments

Answer: No, The Mortal Instruments is a series of six young adult fantasy novels written by Cassandra Clare, the last of which was published on May 27, 2014. The Mortal Instruments is chronologically the third series of a proposed five in The Shadowhunter Chronicles but it was the first one published. It follows Clary Fray (who interacts with a group of nephilim known as Shadowhunters) while also discovering her own half-angel heritage. The Shadowhunters protect the world of mundane people, who are also called mundanes or ``mundies'', from dark forces from beyond their world.