Gray Era Beyond the Ice Wall

On the sixty-third day of the mission, astronaut Shen Ge saw a gray line outside the window of the space station. Not a cloud, not an aurora—a cross-section of a wall in the middle of the Arctic ice cap. He didn't report it. Because if you say "I saw a wall in space", you will be sent back for a psychological evaluation. Three months later, he took eleven photos, found three people, and flew to the North Pole. Arrive. At the end of the ice field stands a wall. Off-white, translucent, extending from the feet to the end of the sky. Light cannot pass through it, and a coin thrown over seems to be wiped out from the universe. There is a crack at the base of the wall. Looking in through the crack - the green mountain is shining, and there is a human-shaped black spot on the mountainside, standing facing the wall. Nine stars are connected in a line. The seam becomes a door. Shen Ge and Lao Liang went in. The door is closed. Behind the wall is the cracked piece of the nine-piece sky. The material needed for repair is "people". After seven days, the door will open again. If they were still alive at that time.