Pig Farm Echo

My dad died in a methane pit. Everyone said he drowned accidentally. On the twelfth day I took over the pig farm, I heard tapping sounds at the bottom of the pond - three long and two short, Morse code. He banged on the pool wall for three years. For twenty-eight years, I thought I was just a pig farmer. Until I turned on the copper key, walked into House No. 11, And saw those "things" - they had the body of a pig, but had a pair of human eyes. My mother is not missing. She stayed underground for eighteen years, sending me messages with a pig's voice. My best brother in college was a chess piece raised by Boss Zhao. It took my father three years to save a pool of methane, and it took my mother fifteen years to hold off a madman. And I only have eighteen days. After eighteen days, the methane concentration in the biogas digester will reach 10%. When the time comes, either blow them all up or become them. —— Three long and two short. Wait for me. This time, I heard it.