Shu Guan took step by step on the solid stairs.
From the sensation beneath his feet, he could clearly tell that this was not some illusory thing from a painting, but rather the unquestionably real ground paved with golden bricks.
If it were an illusion, perhaps the bamboo dragonfly in his palm would fly up once more, allowing him to see what was real again.
The staircase slanted downward, with not a hint of light around.
The wooden door behind him had already closed, so no more light could come in.
Shu Guan did not look back to see if he could push the door open again. Having decided to explore the underground palace, he resolutely continued forward.
He took out a windproof steel lighter, ignited a flame, then pinched the flame off and placed it in the center of his palm. The flame turned into a fireball, illuminating his surroundings.