At the moment I find that the necromancers are quite out of control. They spread like a virus, taking over whole continents, fighting endless wars with other necromancer towers over the unfortunate human slaves in nearby settlements. The result of all this is that the write an infernal number of books, such that the game crashes when one tries to use to search function.
I propose we add two extra sites to the game that are loosely modelled on the necromancers and recruit/function similarly, also writing their own books. These would be Monks and Wizards, with the Monastery and the Academy as their sites.
I additionally propose that we reduce the rate of book writing to like a 5th of the present amount.
Monks
Monks are devoted to a particular god. Unless that god is a god of death, they hate necromancers violently spending a lot of time attacking towers if they are in the area. They are recruited from among the worshippers of that god, which binds them closely to the fate of a particular civilization especially since they are mortal. As a result they should enjoy generally peaceful relations with that civilization, but not with 'heathens'.
In between anti-necromancy crusades monks like necromancers write books. These books tend to be religious books devoted to the particular god they worship and it's ideals.
Wizards
Wizards are intellectuals. They are recruited widely from among the intellecutally inclined of all races, having masters and apprentices as well. Wizards write books at twice the race of both monks and necromancers, also they can write books of all topics including necromancy and religion. Their ease of accessing necromatic and religious books, tends to make them a gateway that feeds the proliferation of both monks AND necromancers in the area, thus their historical purpose is as a catalyst. Wizards themselves however are generally pacifistic, avoiding interacting violent interactions with the rest of the world but they do have an array of various powerful exotic creatures at their disposable if attacked. Monks and Necromancers both will attack wizards if they cannot find eachother because they both seek to monopolise knowledge in the area.