Dong—dong—
The Puppet Ghost, under the escort of Passerby A, slowly walked toward the dark door. As they descended further and further, the sight was essentially void of any visible object, with only the sound of footsteps echoing in the narrow stairway.
Unexpectedly, beneath this inconspicuous dark door, there hid such an unfathomably deep space.
This unfamiliar sensation gave it a sense of déjà vu.
"Hiss... It seems quite similar to that cave at Bogda Peak; the space here must have been artificially altered," the Puppet Ghost pondered.
The distance it had walked downward had far exceeded the normal depth of an underground structure.
"Stop, stand still."
Suddenly, Passerby A's voice commanded from behind, stopping the Puppet Ghost in its tracks.
It couldn't help but glance downward; the depth of the stairs was still indiscernible and might extend a few hundred meters more.
