Complex sentence: Coney followed this with the "Spear of Destiny" story arc in "The Darkness" that introduced the Magdalena character, a character which has since spun off into books of its own.
Split into simpler sentences: Coney followed this with the'Spear of Destiny' story arc in "The Darkness" that introduced the Magdalena character. A character which has since spun off into books of its own.