This article will guide you on where to find all the side quests in the Burning Shores DLC of Horizon Forbidden West. The Burning Shores DLC introduces three new side quests.
1) Side Quest: A Friend In The Dark
To start “A Friend in the Dark,” players must first solve the puzzle in the Murmuring Hollow Relic Ruins. Use Aloy’s Sunwing to fly to the rooftop location that has a blue metal door. Once inside, scan the purple datapoint to uncover that the door code for the Murmuring Hollow Relic Ruins is 1315.
Head outside to the nearby campfire, Go near the cliff behind the fire, use the metal bar, and rappel down to an underground area with some train cars. Pry open the train door on the left and then pull the lever. This will slightly shift the train, allowing players to remove the energy cell from the side.
Next, insert the energy cell into the slot of the opposite train and pull the lever inside the railway car to reverse its direction.
Going to the right-hand side door and entering the four-digit code (1315). Head inside to find a Ball Ornament.
Bring the energy cell and insert it into the slot in the Ornament room to unlock the door. There is an Auxiliary Key Module (I) inside.
Use the Auxiliary Key Module (I) to open the left side near the train car to reunite Aloy with Gildun. This trigger the beginning of the A Friend in the Dark Side quest.
2) Side Quest: The Splinter Within
This side quest will become available after completing the eDLC main story. Talk to Theoa at the location marked on the map.
3) Side Quest: In His Wake
This side quest will become available after completing the eDLC main story. Talk to Otosu at the location marked on the map.
