The Night Walker moves slowly with the 12 searchlights blinking as writing words and images that are digitally registered in the device. What’s written in the night sky only manifests as a result of the long exposure to the photography. It speaks to the air. It only shows in the night sky. Eyes of human don’t have the function to see it. The eyes of camera that never moves or blinks for a long time can read it to people only after when it’s all done.I took the Night Walker to the various places- parks, playgrounds, streets, mountains, ports and seas to write lines from daily newspapers and nobles and also some songs and poetry. I often go to the place where whales are reported to be appeared and killed. The Night Walker gave the simple geographic information written in the sky of the spots.