Early the next morning, Qi Xuansu arrived at the Nether Prison.0

To prevent collusion, interrogations were always conducted separately. The first to be brought in was Gao Mingyin.0

The layout of interrogation halls was nearly identical across the Daoist mansions. There were two doors—a small one for the interrogators and a large one for bringing in prisoners. The chamber itself was divided into two sections. The outer chamber, entered through the large door, contained torture instruments and a desk for recordkeeping. The inner chamber, accessed through the small door, was sealed off, allowing those inside to observe the outer chamber without being seen themselves.0

Qi Xuansu entered the inner chamber through the small door. It was equipped with a table and chairs. The wall facing the outer chamber was made of a type of brown crystal that made it dim yet clear, offering an unobstructed view. This crystal wall could also be raised or lowered at will.0

At the center of the outer chamber was a stone chair built into the ground. Two Spirit Guards placed Gao Mingyin into it and secured him with the chair’s...0