Complex sentence: She also later duels with Duke Roger after he is resurrected by her twin brother, Thom, and tries once again to take over Tortall, this time not as king, but by destroying it and everyone in it.
Split into simpler sentences: She also later duels with Duke Roger after he is resurrected by her twin brother, Thom. Roger tries once again to take over Tortall, this time not as king, but by destroying it and everyone in it.