Oldwalls Breach is an location in Tyranny.
Oldwalls Breach Information
General Walkthrough and Tips
A group of Unbroken soliders will stop you when you reach this location, if you are currently hostile with Unbrokens, you need to defeat them before explore this area.
After killed the Unbrokens, a sage shows up and tells how to get into the Ocean Spire, along with other useful informations. You can also get the quest The Stones of Elucidation.
On the east part of this map, find Garn Torchkey on a dead body, then proceed to Ocean Spire.