After escaping the Projectionist, you'll find yourself back in a familiar area, possibly the Archives or a connected section. Your immediate goal is to find a way to the very bottom of the studio. This often involves activating a large lift or elevator that descends into the deepest levels.
The path to the lift may be guarded by various ink creatures, including Searchers and the Butcher Gang. You'll need to clear the path and potentially solve a power-related puzzle to get the lift operational. As you descend, the environment becomes increasingly dark and claustrophobic, hinting at the horrors that lie beneath. Pay attention to any final audio logs or environmental clues, as they will provide crucial context for the game's ending. The descent is a symbolic journey into the heart of the studio's corruption.