Complex sentence: A former servant of Orcus, Eldanoth ("The Bloodless Scion") left after his patron's death at the hands of Kiaransalee, taking over the 359th layer of the Abyss, called the Arc of Eternity.
Split into simpler sentences: A former servant of Orcus, Eldanoth ("The Bloodless Scion") left after his patron's death at the hands of Kiaransalee. After the death of Orcus, Eldanoth took over the 359th layer of the Abyss, called the Arc of Eternity.