Reaching the first Wall of Light | Mission 2 - High Overseer Campbell Dishonored Guide
Last update: 11 May 2016
New Main Quest: Get past the first Wall of Light
New Main Quest: Take the blackmail journal from High Overseer Campbell
New Optional Quest: Use the Bottle Street alleys to get around the Walls of Light
New Optional Quest: Ensure Captain Curnow survives his visit to the Office of High Overseer
New Optional Quest: Talk to Granny Rags in her apartment
Your first quest is to get to the place where there is the first wall of light located. The easiest way to get there is to follow the main path. The area is patrolled by a sole guardian and depending on your preferences, you may either kill him, avoid him or put him to sleep. On your way there, keep your eyes peeled for food, gold and a note (Arthur's Note).
There is another variant, though. You can jump into water and proceed alongside the waterfront until you reach the rocks shown in the above screenshot. Climb up these rocks and you will wind up near your current destination without the necessity to worry about being spotted by anyone. Note - You do not need to worry about civilians (save crooks that you will meet later on). They do not raise alarm when they see you.
Before you approach the first wall of light, it is a good idea to search around for the first Bone Charm. The charm is hidden at the end of the bridge, from which two guards throw corpses into water. The easiest way to reach the amulet is swim up to the rocky ledge shown in the above screenshot and grab onto a loose chain. In the meantime, you should also make use of the Heart to determine the Charm's whereabouts. You also need to watch out for piranhas, as far as it is possible, avoid meeting running into them and limit time you spend in water to a minimum.
Climb up the chain and jump onto the top platform shown in the above screenshot. Collect the Bone Charm, and food, gold and a book. Note - do not walk along the bridge. There are three guards further on and it would be difficult to avoid being caught within their sight. It is way better to return down and reach the wall of light following the method described above (by following the main path or by climbing up the rocks).