The Tower of Knowledge, or the Tower of Masters, depending on region and class, is the sole stone structure in the entire Swamp Realm (Marsh Realm, if you're educated and annoyed that no one else cares, but you care very much). It is the structure anchoring the capital city of the Kingdom to stop it from floating away all the time.
This tower houses a massive archive, where policies, laws, births, deaths, treaties, prices, strategies, history, mathematical theories and theological texts are housed and kept by the Masters, who have usually trained in multiple aspects of academia for one or two decades to earn that title. Only with this title can they actually work at the tower in any capacity, whether as clerks, secretaries, managers, guards, teachers, janitors or researchers. To work at this tower is an honor that can only be earned through years of intense studying. Well, theoretically anyone could study, but they "require" (=want) fees to "keep the tower running and pay all the Masters" (=pay for really nice shit for the more esteemed Masters).
The real aim of anyone who goes through the necessary training to become a Master, is to become a member of the Council of Masters, the most esteemed Masters, some of them usually spend more time in the royal Palaces giving council to the monarchs than in any archive, others are in frequent contact with monarchs or Lords, others travel from Lord to Lord, giving council to these rulers and the rest decide over the entire institution of all Masters.
Most Masters end up as teachers, either for the children of especially rich commoners and lower nobility, teaching them in the Tower of Knowledge or it's adjacent buildings, or they move into the home of a higher noble family to teach the children there, which often leads to them also advising the head of the Family.
Two main characters, Captain Alinos of the Royal Guard, first division, and Crown Princess Latrana of the Swamp Realm, were educated in the Tower itself by one of the most esteemed Masters, Master Therew.
Four other main characters were taught by the Masters Werin and Kaley respectively. The last main character did not receive a formal education.
