He can walk in! Right at the doorway, a wave of information floods through him, about carnivorous plants and constellations and monsters and how to treat one's friends and owl demon sexual characteristics and myths...

It's not quite like remembering his conversations with Laios. The information is neatly organized, and there's a visual component to it, the vague impression of a flow-chart. But he certainly knows where most of it came from.

Inside, it looks like Moon House, complete with ball pit. Some details, again, are just a little off or not quite complete, but it feels familiar. Maybe Laios's memory isn't perfect.