For a detailed account of the Brethrens' actions through the five sibling gods, see Malpercio. Little is known of the Dark Brethren, but they appear to be extra-dimensional beings of enormous power and existed during the Age of The Gods. The Brethren and Wiseman, though any connection between the two is unclear, can be seen as the most evil and ultimate villains in the Baten Kaitos Series, completely devoid of any kindness, remorse, or sympathy, and serve as the catalyst for all the events in the series. They are often feared by the general populace above all else just by the mere legends surrounding them and dwell in Zaurak Keep, later known as Cor Hydrae after being banished to another dimension, filled with their monstrous armies.