Car 56 moved slowly out into the police lane. Both troopers had their individual sets of video monitors on in front of their seats and were watching them intently. In the growing light of day, a white-topped car was going to be easy to spot. * * * * * It had all the earmarks of being another wintery, overcast day. The outside temperature at 0800 was right on the twenty-nine-degree mark and the threat of more snow remained in the air. The 0800 density reports from St. Louis Control were below the 14,000 mark in all lanes in the one-hundred-mile block west of the city. That was to be expected. They listened to the eastbound densities peaking at twenty-six thousand vehicles in the same block, all heading into the metropolis and their jobs. The 0800, 1200 and 1600 hours density reports also carried the weather forecasts for a five-hundred-mile radius from the broadcasting control point. Decreasing temperatures with light to moderate snow was in the works for Car 56 for the first couple of hundred miles west of St. Louis, turning to almost blizzard conditions in central Kansas. Extra units had already been put into service on all thruways through the midwest and snow-burners were waging a losing battle from Wichita west to the Rockies around Alamosa, Colorado. Outside the temperature was below freezing; inside the patrol car it was a comfortable sixty-eight degrees. Kelly had cleared the galley and taken her place on the jump seat between the two troopers. With all three of them in the cab, Ben cut from the intercom to commercial broadcast to catch the early morning newscasts and some pleasant music. The patrol vehicle glided along at a leisurely sixty miles an hour. An hour out of St. Louis, a big liquid cargo carrier was stopped on the inner edge of the green lane against the divider to the police lane. The trucker had dropped both warning barriers and lights a half mile back. Ben brought Beulah to a halt across the divider from the stopped carrier. "Dropped a track pin," the driver called out to the officers. Ben backed Beulah across the divider behind the stalled carrier to give them protection while they tried to assist the stalled vehicle. Donning work helmets to maintain contact with the patrol car, and its remote radio system, the two troopers dismounted and went to see what needed fixing. Kelly drifted back to the dispensary and stretched out on one of the hospital bunks and picked up a new novel. Beulah's well-equipped machine shop stock room produced a matching pin and it was merely a matter of lifting the stalled carrier and driving it into place in the track assembly. Ben brought the patrol car alongside the carrier and unshipped the crane. Twenty minutes later, Clay and the carrier driver had the new part installed and the tanker was on his way once again.