The King died a few months ago. His daughter, Lady Celia, ascended to power counting 16 years. She is young and beautiful, but cruel and dispassionate.
On the other hand, an old wizard is investigating the dead of the king. He finds out that the king was assassinated and fears a conspiracy.
On the other hand, the neighbor kingdom demands a revision of the limits and threatens taking its troops to war.
On the other hand, many free cities have been united under the command of a forgotten cleric of the Ancient Dragons that tries a civil war.
All this mini-plots are being manipulated by a secret enemy who wishes to debilitate the kingdoms to invade. It may be a forgotten god, a dragon, a wizard, or a farmer.
He/She/It is behind the conpiracy.