The Ambassador of the Great Lord. The Hidden Kingdom. Part 1. Volume 1.

«The Hidden Kingdom» — the first book in a series about palace intrigues, the price of success, and the unraveling of the uniqueness of an ancient people.
Unizel Virando — a linguist, an archive worker, and a hopeless failure. Suddenly, he... becomes part of a large diplomatic mission aimed at concluding a peace and trade agreement with the most secretive people of the Observable land. This treaty will radically change the balance of power in the politics and economy of the empire, potentially leading to a civil war and even destroy the state itself. The young man is drawn into a large-scale political game with high stakes.
Uni must demonstrate resourcefulness, unravel the thinking patterns of the mysterious people, find his purpose, love, and become the one who holds the fates of great empires in his hands.