During the Great Sith War, the Order was styled into a Sith cult of assassins that produced a number of Sith Lords, fighting for Exar Kun.
The Mecrosa Order was exterminated by the Jedi and House Pelagia during the Cleansing of the Nine Houses, one of the Old Sith Wars. Under the New Order, young House Mecetti secretly revived the Order.
- Player's Guide to Tapani
- Lords of the Expanse
- Evil Never Dies: The Sith Dynasties on Hyperspace
- Jedi vs. Sith: The Essential Guide to the Force
- Knights of the Old Republic Campaign Guide