Crust Records

Two o'clock in the morning, the northern edge of the Tarim Basin. Only Ji Shen was left on the night shift on the 10,000-meter drilling platform. The bit pressure is 12.7, The pump pressure is 8.3, And the torque is 3815. Everything works fine. After three years of night shift, he could predict these numbers with his eyes closed. After drilling to 9,780 meters, we are just one step away from 10,000 meters. After working on Shen Di No. 1 For five years, more than 300 people in the Tarim desert have been waiting for this moment. He opened the duty log. The cursor flashes. I wrote the first line three hours ago, and then added a line every half hour, with each line shorter than the last - there is no need to write more when there are no abnormalities. 4:17 Am. Three pulses flashed on the earthquake monitoring screen. The interval is exactly 370 milliseconds. Not noise, not equipment failure, not natural seismic waves. It's like someone knocked on the door three times at a depth of 9,800 meters in the earth. He stored that waveform screenshot in a folder called "Pulse". Not a question mark. He didn't know what it was - but he knew the frequency. His father, Ji Yuanshan, disappeared thirty years ago while doing geological surveys on the Qinghai-Tibet Plateau. The last field record said: The geophone recorded unknown vibrations with a frequency of 0.1 To 4 Hz. We will go deeper to set up the station tomorrow. Ji Yuanshan did not come back that night. What my father heard on the surface thirty years ago, he heard again ten thousand meters underground thirty years later. Same signal, same frequency band. This is more than just the disappearance of one person. This is a record buried in the earth's crust. It is the earth itself speaking - the question is who played this record and what is it talking about.