If you explore the underworld and follow Biachar’s energy, you will likely end up inside the museum of the moon. The moon has no exit or entrance, but it is accessible in ways that feel like glitches or errors in the structure of the underworld. The museum is all white, even the paintings are completely white in most of the hallways if they aren’t mirrors in frames. The walls are carved with intricate patterns similar to baroque style but have phallic imagery as well as some decorative vines and pictures of celestial beings. The floor of the moon’s museum is checkered with black and white but may be a mirror or just pure white in some places. There are clocks with no numbers and symbols that have no meaning, and the hands of the clock do not move consistently, seemingly randomly going back and forth and stopping on different symbols.
Navigating Biachar’s museum is tricky and requires creativity because hallways loop infinitely if walked straight down and you would quickly end up back at the entrance of the room where you entered the hallway. The paintings of the museum are actually meant to be climbed inside of, and you can end up in various colorful rooms this way. Some house spirit guides, others have lost toys, and some have chalk outlines. Others have the corpses of dead gods or monsters kept in chains. Some of the painting rooms have magicians sitting on the ceiling who will not respond if spoken to and feel like statues if touched. Some rooms even have naked people wearing masks and leather dress shows doing formal dances to classical music. Other painting rooms display insanity, with people in straitjackets in padded rooms or tied down on wooden boards. Some rooms even have talking statues or paintings that you can have conversations with.
When you desire to leave the museum of the moon, you may end up outside of it somewhere when climbing into any painting, or simply start floating out through the ceiling as if it was air. You may also simply fall through the floor in a similar way. If none of these happens you can simply speak to the butler at the door with a teddy bear head, and he will send you back to the land of the living.