Complex sentence: She learns more spells than any other woman and some people begin to call her Morgan the Goddess, and her realm becomes known as the Val sans Retour (the Vale of No Return), a place where she imprisons her lovers.
Split into simpler sentences: She learns more spells than any other woman and some people begin to call her Morgan the Goddess. Her realm which becomes known as the Val sans Retour (the Vale of No Return), a place where she imprisons her lovers.