Complex sentence: Krista's search for her brother's killer soon brings her face to face with Blade, as well as with the killer himself, Marcus Van Sciver, a powerful vampire and high-ranking member of the House of Chthon.
Split into simpler sentences: Krista's search for her brother's killer soon brings her face to face with Blade, as well as with the killer himself, Marcus Van Sciver. Marcus is a powerful vampire and high-ranking member of the House of Chthon.