In the arsenal by Taihu Lake, Shen Duchuan was pouring homemade aconitine into bullet casings. Suddenly, there was a dense sound of footsteps outside the door. The Japanese military police, the Wang Puppet Secret Service, and the New Fourth Army guerrilla detachment arrived almost at the same time - someone leaked the news about his improved "silent mine" drawings. According to the iron law of Qingxiang District, if any secret drawing appears, there will be a bloodbath within seventy-two hours. Shen Duchuan unhurriedly screwed on the warhead and climbed into the reed marsh through the back window. Gunshots exploded behind him, and three corpses floated on the water. The poison had already cleared away the first batch of pursuers for him. But he knew this was just the beginning. The inventory of medicinal materials was only enough to prepare four potent poisons, and the Japanese commander Kiyogo Yamamoto issued a death order: capture Shen Duchuan alive or get his formula. Qian Degui, the commander of the puppet army, surrounded the entire town into an iron barrel and implemented the three-card series - whoever hid Shen Duchuan would be shot together with his neighbors. Even more troublesome is Liu Shuang, the female guerrilla captain of the New Fourth Army. She always looked at him with suspicion: "How could a person like you be willing to stay in an underground arsenal?" Shen Duchuan did not answer. He just took advantage of the darkness to sneak a small bottle of antidote into the homes of villagers who were injured by the Japanese gas. There was a note under the medicine bottle: In the third cellar on the east side of the reed marsh, there are blueprints for four submachine guns that can fire twenty rounds of ammunition. But what he didn't write was that the dimensions of the key parts in that drawing were deliberately wrong by one millimeter. He only reserved weapons that were truly capable of fighting to those who could pass his three poison test questions.
