The Clearing Below
The Clearing Below is a secret area connected to the Phantom Pit. When Valor initially enters this area, he finds Blue sitting in the clearing. After fighting and defeating Blue, Valor continues north into another area to find Green sitting on a cliff overlooking a Cradle. In the southernmost part of the area, on the rocky pathway, there is a room signified by yellow lines on the ground that contains a health upgrade.
Continuing south from the health upgrade room will trigger a cutscene of a conversation between the Monolith of Minds team.