IITHERE WAS ONE THING about the Venusian atmosphere. You couldn't see through it, even with infra-beams, at very long range. The intensity needle showed the Patrol ship still far off, probably not suspicious yet, although stray craft were rare over the swamps. In a minute the copper would be calling for information, with his mass-detectors giving the stray a massage. Campbell didn't think he'd wait. He slammed in the drive rockets, holding them down till the tubes warmed. Even held down, they had plenty. The Fitts-Sothern climbed in a whipping spiral. The red light wavered, died, glowed again. The cop was good with his beam. Campbell fed in more juice. The red light died again. But the Patrol boat had all its beams out now, spread like a fishnet. The Fitts-Sothern struck another, lost i