The espionage ring is a quest you get from a noble in Mount and Blade 2: BannerLord. It seems to appear randomly in the games, without any specific noble that you have to find or talk to get it. Before entering the steps we know, you should know that this quest causes a lot of grief in the community. Some people are struggling to finish it, and this could be due to some bugs because of the nature of early access to the game.
For this quest, you have to discover a spy who works to undermine the rule of the Lord who gives you the quest. The only known thing about spy is that he will participate in a tournament.
What you will need to do is talk to the greatest number of people in the city until you get three clues. This seems to be the RNG, so we suggest you to direct you to the tavern and talk to the greatest number of people as possible, which will bring you, hopefully, the three indices. Otherwise, you will have to walk in the streets looking for people to talk.
There will be three indexes in total, which will give you an approximate indicator of who you are looking for. When you have the three indices, browse the city and hold Alt left. This will highlight three areas in which there are three different gangs. The spy you are looking for will be in one of these gangs.
Now, some people report that the indices are incorrect and you can not identify the person you are looking for from them. A popular problem seems to be an index saying that the spy is not bald, only one of the three possible spies having hair, but still not the true spy when you face them.
When you feel satisfied with your choice as to the identity of the spy, you must talk to him and make him fight in duel. What should happen is that you kill the spy and the quest is over. If you choose the wrong person, it will become a murder and the mission will fail.
It’s a pretty buggy quest right now, according to various player reports, so it would be better to just ignore it if it appears in your game. We played the mission, but we had similar problems with those of Other players, with confused indices and an accusation of murder at the end.
We will make sure to keep an eye on future update notes and update this article with all the additional information that is revealed or the fixes that could happen.