The poison smoke attack is the most important part of the entire plan. Shi Qian knows his responsibility is significant, so he made ample preparations, opened the box, took out a snow mouse, and attached a button bomb that would explode in ten minutes to the snow mouse's back. Then he stuck a piece of original film on it, which looked like a tablet, taped it tightly, and placed it on the wall of the ventilation hole, head down, slowly releasing his hand.
The snow mouse frantically clung to the wall. The wall was too slippery to hold onto, and the snow mouse slid down, landing in a bend ten meters deep, and burrowed into a horizontal passage. Seeing this, Shi Qian was overjoyed and said to Luo Zheng: "It's done. Ten minutes are enough for them to reach the bottom. Once it explodes, the poison tablets will burn into colorless, odorless smoke."
