There was a window hole in the wall of the cell. It was a good-sized hole, almost six inches around, the size of a drainpipe. It was approximately four feet long, bored through the massive concretized sand, and it had a crisscrossed grill of thin metal at the far end. By standing directly before the hole Laura could see a simmering patch of yellowish desert sky. Faint gusts of heated air sometimes rippled down the tube.