While in Meridian, Aloy meets Vilgund, who tells her of a remote Banuk camp in the northern regions where Machines are entirely docile. Vilgund sent two of his men to the camp to find out exactly what might be happening but has not heard back from them. He tells Aloy that he will pay her to relay information about the camp to him, as well as discover where his men are.
Aloy meets Tikuk, a shaman who tells her of a 'blue light', or the machine's spirit, that is strong in the area. When traveling through a storm, the Banuk heard the 'song' of the Thunderjaw and camped across the area. The Banuk people believe that each machine has a song, and that they were all docile before something turned them against humanity.
Aloy picks up a strange signal through her Focus that leads her to the top of a cliff overlooking the camp. There, she finds two Oseram, Menuf and Bajund, who plead with her to stop the others in their group from messing with a suspicious device. Aloy discovers these are the men that Vilgund sent. The Oseram group is desperate to use this device for profit, but Aloy tells them they are in over their heads and makes them leave. Not long after, however, chaos can be heard in the camp below. The device was responsible for emitting a signal that calmed the machines, and the signal finally faded. The machines begin to attack the Banuk.
Aloy assists the rest of the camp in dispatching the now-deranged machines. The Banuk Shamans thank her and express their hope that some day they can understand the machines' blue light.
- Search for the Banuk Camp
- Find the Oseram Explorers
- Investigate the Banuk Camp
- Search for a Path up the Mountain
- Go to the Source of the Signal
- Investigate the Voices
- Confront the Oseram
- Examine the Artifact
- Return to the Banuk Camp
- Kill the Machines
- Speak to Tikuk
- Return to Vilgund
- After completing the main quest The Mountain That Fell, Aloy is able to identify the artifact as being a module of GAIA, similar to Hades.
- The mission can be started prior to reaching Meridian if Aloy makes her way to the Banuk Encampment prior to going to Meridian. If this is done, Vilgund does not appear.