Putting aside their differences in the new world, the brothers find common cause and through paired gifts of light and shadow, succeed in binding the Mistwraith with help from the Fellowship.
Lysaer gathers an army to follow Arithon, led by the vicious bounty hunters who capture, kill and sell members of the clans.
Though initially resistant to the idea of leading a guerilla war against the army, Arithon reluctantly assumes command upon realizing it is the only alternative to the extinction of the clans.
The battles that ensue exact horrific slaughter on both sides, eventually resulting in a stalemate that forces Lysaer to withdraw without killing his brother.
While Lysaer returns to the cities to muster a greater army and more support for his fratricidal war, Arithon becomes apprenticed to Athera's Masterbard, departing the clans in disguise.