“What makes you think that Valentine's change of plans had anything to do with your brother?" "Because only Jace can piss someone off that much.”

Cassandra Clare is an American author of young adult fantasy. She gained prominence for her *Mortal Instruments* series, blending urban fantasy and gothic romance, and later expanded her world with the *Shadowhunters* novels. Her work explores themes of identity, destiny, and hidden supernatural communities.