Mirror Flower, Water Moon

In the narrow dark passage, Zhao Lanmeng crawled ahead while Old Train followed behind. "Can't you make this place a little roomier?" Old Train had grown weary of crawling. He loathed cramped, stifling places like this.

Zhao Lanmeng turned back and said, "I spent more than ten years digging this passage. Getting it this wide was no easy feat."

Old Train said, "Isn't this passage something from a dream? Don't you get to call the shots on everything in a dream?"

Zhao Lanmeng said, "This isn't something I can decide at will. This passage is real. If you don't believe me, go to Chaoge, pull out the bricks from Dream Tether Tower, and you can crawl in through this passage too."

"Why would something real appear in my dream?"

"Because I connected your dream to Dream Tether Tower."

There was a corner ahead. Zhao Lanmeng had to exert great effort before he could turn himself around.

"Need a hand?" Old Train was about to use Cut Path Opening Road.

Zhao Lanmeng hurriedly waved his hands. "Don't mess around! This place is real. If you make too much noise, Meng Qian will find out."

"Weren't you going to fight her to the death?"

"I'm not afraid to fight her, but I can't let her prepare in advance and scheme against us."

The two crawled for over an hour before finally reaching the passage exit, arriving beneath the wall of a work shed. Looking through the shed's window, they saw one man drawing blueprints on a blackboard while another helped him calculate data.

The man handling the calculations was named Zhao Dajun. He was a Number Theorist, also known as a Calculation Cultivator.

Old Train said, "I know this man. Seventh Brother knows him too."

Back when Li Banfeng had stumbled into