Reaching the Lighthouse elevator | Mission 9 - The Light at the End Dishonored Guide
Last update: 11 May 2016
New Main Quest: Enter the Lighthouse Elevator
What you can see ahead, is the staircase that leads up to the [Kingsparrow Gatehouse] and, depending on where you start, you may encounter either one or several guards. It is a good idea to explore the lower level of the staircase (the one that neighbors the sewer tunnel), where you can find a rewire tool.
If you want to avoid enemy units at all costs, you, it's a good idea to grab onto the loose chain shown in the above screenshot and climb it.
If you don't mind eliminating guards you encounter, it is better to use the stairs. I recommend that, on your way, you turn your attention to the outpost occupied by a single enemy. You can find here Sokolov's health elixir, a lighthouse elevator key and a note (The Lighthouse elevator key).
Continue forward, or up the chain. As you progress, you will meet two other guards. Your destination here, is the top catwalk, shown in the above screenshot.
You have probably noticed already that on the bridge ahead of you, there is an active arc pylon so, you need to react to this inconvenience. You can disable the pylon by shooting its power supply tank (it's on the pylon's left side) from the distance, but this would alarm your enemies to your presence. An interesting solution is to walk underneath the pylon (the above screenshot) in order to go around it, disable it or rewire it (the control panel).
In my opinion, the best way to go around the arc pylon, is to climb using the structure's construction elements (the above screenshot).Of course, you need to be careful so that you don't fall. The additional advantage of this solution is that you can easily go around the guard on the stairs seen in the distance (otherwise, you would have to kill him).
You need to watch out because there is one more enemy near the elevator. You can render him unconscious, especially that he has a lighthouse elevator key on him.
New Main Quest: Reach the Lighthouse
Your destination is the elevator and you can get inside in two ways. If you have one of the keys on you, you can use it on the door shown in the above screenshot..
If you don't have the key, you need to reach higher levels of the metal cage around the elevator and eventually, on the roof. Once there, jump into the hole shown in the above screenshot. Regardless of your variant, pull the lever and confirm that you want to go to the lighthouse.