Thief Side Mission: The Tinker's Trinket

There is a set of stairs headed down, into a building, near where you entered the area. The room has a few guards in it, and the flames provide a lot of light. This isn't an area to sneak around in, so just take them out however you need to, and get to the door inside.

Pick the lock, and enter. The General's New Medal is inside the chest. There is also a document on the desk, and a 50G pocket Watch inside.