It's hard to see the other swimmers through the pre-dawn darkness and the layers of warm steam. I feel like I'm creeping through the Amazon at night. Up above, to the north near the beltway, a helicopter hovers and a plane does circles. One of us must have gotten out, I thought. Sirens wail and police cars honk. They'll get him. They always do. Soon he'll be caught and thrown back in the pool. There is no escape.