I'm on "The City and the Starts" mission and I'm at the part where I have to go to Minister Clarke's house. The issue is that the one guard outside is hostile. I can't speak to him to trigger the next part of the mission.
If I sneak inside via the back, I have to kill all the guards inside to get to Clarke. Which lowers my rep so as soon as I leave the house, everything in Byzantium shoots me. I can't progress further.
I don't understand why it's only that ONE guard outside the house that is hostile. I've not done anything to make the NPCs in that area hostile.