The Free Company of Brethren is a gang of bandits who primarily prey on .
Little is known about the motivations of the Brethren, but it is clear that they are extremely well funded, and possibly have very powerful backing.
They have several Warforged in their possession, which are possibly the first such beings not in the direct control of The Spirited Mind. No indication has been found as to how The Brethren got their hands on such expensive technology.