“A great sadness welled up in Magnus at the sight of him. It was human to age and die, and Jem stood outside that humanity now, outside the light that burned so brightly and so briefly. It was cold outside that light and fire. No one had greater cause to know that cold than Magnus did.”

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.