This is a deep corridor.
There is no light in the corridor.
Only at the end of the corridor, on the walls to the left and right of the black door, are embedded two pale green Luminous Pearls, bringing a hint of subtle vitality to the corridor. From afar, it looks like a serpent lying in wait, ready to hunt in the darkness.
The pearl light spreads diffusely around, finally converging on the door's central Ring, casting a sinister shadow over the bronze-cast Guardian Beast of the door ring.
Tap, tap, tap, tap.
The somewhat subdued sound of footsteps came from the entrance, bouncing between the equally eerie walls, eventually gathering into a murky sound that roused the slumbering Guardian Beast.
Clang!
The beast holding the door ring in its mouth shook it vigorously, identifying the guest by the echo, then let out a heavy sigh of relief. The brass nails beneath it, originally glowing faintly with a green light, gradually darkened.
