I let the dogs out into the back yard while my wife was drying her hair tonight, just as full dark settled down onto the green slopes. Looking north, I saw a series of silent flashes, looking just like artillery does from a distance. But the boom-boom-booms never came, never rolled towards me. Silent and silver. Heat lightning. I opened the door and called to Mrs. Orr, and she came outside. After we watched for a minute, I took two chairs down into the yard and we sat for a while and watched the quiet light show, including the lightning bugs that danced in the woods and along the fenceline.…