Complex sentence: Richard lives in an area of the fantasy world known as Westland, which is the only part of the fantasy that at the time contained no magic.Though separated from everyone else by a dangerous magical boundary that prevents anyone from passing through it.
Split into simpler sentences: Richard lives in an area of the fantasy world known as Westland, which is the only part of the fantasy that at the time contained no magic. The Westland is separated from everyone else by a dangerous magical boundary that prevents anyone from passing through it.