Low-altitude shuttles roared overhead, and Chen Mo's electric car bumped at the entrance of the alley. The order was overdue for three minutes. Customer Guo Zhiqiang stood in front of the floor-to-ceiling window and sneered: "The delivery person should walk on the ground." Chen Mo didn't say anything, just looked down at his phone - the so-called "military grade" air purifier in the room suddenly blew air in the opposite direction at full power. Guo Zhiqiang's custom-made suit was instantly covered with dust, and he kept sneezing. "You can complain, my rating is already at the bottom anyway." Chen Mo turned around and left, adjusting the purifier back to normal. His finger crossed the screen, and a ghost icon appeared in the smart home APP - the dryer in the laundry downstairs began to vibrate abnormally, the speaker in the cafe next door automatically played the weather forecast, and even the street lights flashed with a Morse code-like rhythm. Community volunteer Lin Qian sent a message: "Chen Mo, Teacher Helan's ancient book restoration room has a power outage. Can you go and have a look?" He replied "Okay" and at the same time found through the meter data that the power outage was not a fault, but that someone had tampered with the power distribution cabinet of the building. When Chen Mo walked into the power distribution room, a line of red text popped up on the screen of his mobile phone: [Warning: A high-level tracking device has been detected and is scanning nearby IoT nodes. ] He closed the APP and took out a pair of tweezers used for repairing ancient books from his pocket. Some traces should disappear completely.
