This is an evocative story, an interstellar story. What will people do after a thousand years? Everyone will think about it. When I was walking alone on a deserted night in 2003, I saw a bright light, so I hid. The bright light stopped beside me. I did not open my eyes because I suspected that the light would hurt my eyes. Soon, The spaceship left, leaving behind a box and a key. I opened the box and found a book inside, written in Chinese. It turned out to be a history of planetary wars. After reading this history carefully, I gave it a name, that is (Earth Killer).