Ministry of Secrets
For many self-explanatory reasons, most of the activities of the Ministry of Secrets are not common knowledge to the general public. They are known to be based out of Castellum Chryse, where, among other things, they manage and defend the Imperial Reliquary. Only vessels bearing the flag of the Ministry of Secrets are allowed to approach Castellum Chryse, and only members of the Ministry of Secrets (and their escorts) are allowed within.
The Ministry of Secrets are also known for being particularly interested in recovering treasures and artifacts from Zarthura's ruins, so that they may be safely stored within the Imperial Reliquary and not left to the unforgiving elements (or stolen and sold on the black market by members of the The Web). They are also known to offer to purchase magic items at full market value, making them quite popular amongst adventurers and treasure hunters alike.