Constant Temperature Era

Sixteen Hertz. A low-frequency signal that has never been recorded comes from deep in the earth's crust. That wasn't an earthquake—it was Earth's planetary temperature control system crying out for help. For billions of years, ley lines have maintained the planet's body temperature with silicon-based veins. Now someone is using liquid helium to force it to overclock, turning it into a cryptographic machine that can decode the secrets of the universe. The price is: its medical records are torn apart piece by piece, and every high temperature, ice age, and cooling attack becomes data available for eavesdropping. Zhang Guofeng died in this eavesdropping. His wife Lin Jing became the carbon-based modem of Leyline, and silver-white crystals grew on the back of her hands. Restorer Su Nian used a basin of water in a copper basin, put his palms against the soil, and listened to the heartbeat of 16 Hz underground. Hacker Raven tracks an AI older than human civilization - it has been waiting deep in the Greenland ice for tens of thousands of years. The secret of the earth's veins points to the beacon under the Antarctic ice, to the interstellar relay station in the direction of Vega, and to a civilization tomb group that is exhausted one by one by loopholes in the protocol. When Lin Jing chose to use her body to become a bridge between the earth and the galactic temperature control network, when Su Nian poured water into the patio and said "continue", when the street lights flashed—— Not a malfunction. It's the ley lines saying: I'm here too. Sixteen Hertz. Always there.