"Hahahaha..." Xiao Shu burst into another peal of laughter, finally catching her breath. "You really have the patience of a stone. You held onto that question from Silent Mountain all the way to Xiangcheng—hundreds of hours passed before you finally asked. If I were you, I would have asked right then and there. But of course, Li Xiaohao’s goons were nearby; that answer absolutely couldn't be revealed back then."

"Enough with the dramatics, just spit it out if you're going to tell me," I said, feeling a touch annoyed by Xiao Shu's habit of making things mysterious. I much preferred direct answers.

"Fine, I'll tell you. Wraiths aren't fashion models; they don't have many clothes to begin with. To move around in the living world and hide their lack of body heat, their garments are 'mailed' to the underworld by their living relatives using 'Two Realms' stamps. Only items sent to the netherworld via these 'Two Realms' stamps can be brought back to the mortal realm for a wraith to use freely. His clothes were all provided by me, his only living blood relative brother. Of course, that was also his request. To this day, I have only 'mailed' one set of clothing to him. When I bought them, there were two identical sets—one I kept with me, and one I 'mailed' to him."

Hearing this, my mind suddenly flashed to Stamp World. I remembered when I was in the mental hospital, Wenshu used to read a story from it to me. The story was about a dead child asking his mother for his favorite wooden rattle from when he was alive. The mother wrapped the rattle in yellow joss paper, wrote the child's birth and death dates on it, affixed a "Two Realms" stamp, and burned it on the night of the fifteenth. That night, she dreamt her son was happily playing with the rattle.

What Xiao Shu had just said was an exact match for the story in Stamp World. I pondered that this magazine must be significant; much of what it contained probably related to the connection between the Yin and Yang worlds.

"Stop spacing out, nothing to worry about. Let's go," Xiao Shu said, nudging my lower back with her elbow as I stood frozen, pulling her backpack on, ready to hit the road.

I snapped back to attention, temporarily shelving the issues of Stamp World and the "Two Realms" stamps, and checked to make sure my own backpack was fully stocked.

Last time, in the corridor crawling with flesh-eating Nether Worms, Wang Jue used a lighter to draw the wriggling creatures away. I felt it was necessary this time to bring some candles and a lighter. While open flames might attract the Nether Worms, they could also be used effectively to lead them away from a direct path.

Another nagging problem was the bodysuit. Without one, getting through that narrow gap in the wall wouldn't be easy. A slight brush against the Nether Worms, and I could end up losing my life just like Hou Dayong. Where could I find a bodysuit? I was stumped.

Xiao Shu, seeing me standing motionless with my pack, grew somewhat impatient and asked urgently, "My lord, what is it now? We still need to hurry and rescue those two children."

I briefly recounted my last trip to the Sea of Wraiths, presenting the problem of the wall gap and explaining that without a bodysuit, I didn't know how to traverse it.

Upon hearing this, Xiao Shu also looked troubled. She had never been to the Sea of Wraiths, so she naturally didn't grasp the peril of that corridor filled with Nether Worms. A wall gap infested with them was something she’d never even heard of—it was genuinely an unexpected complication.

"How about we go to my villa first? Perhaps the library will have records pertaining to bodysuits," Xiao Shu suggested. "From there, we can also go directly to Li Xiaohao's villa; no need to loop back to the mortuary."