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Ben grinned and headed back to the front of the car. "Tell me more after we're on the road," he said from the doorway. "We'll be rolling in ten minutes."

When he reached the cab, Clay was already in the right-hand control seat and was running down the instrument panel check. The sergeant lifted the hatch door between the two control seats and punched on a light to illuminate the stark compartment at the lower front end of the car. A steel grill with a dogged handle on the upper side covered the opening under the hatch cover. Two swing-down bunks were racked up against the walls on either side and the front hull door was without an inside handle. This was the patrol car brig, used for bringing in unwilling violators or other violent or criminal subjects who might crop up in the course of a patrol tour. Satisfied with the appearance of the brig, Ben closed the hatch cover and slid into his own control seat on the left of the cab. Both control seats were molded and plastiformed padded to the contours of the troopers and the armrests on both were studded with buttons and a series of small, finger-operated, knobs. All drive, communication and fire fighting controls for the massive vehicle were centered in the knobs and buttons on the seat arms, while acceleration and braking controls were duplicated in two footrest pedals beneath their feet.

Ben settled into his seat and glanced down to make sure his work-helmet was racked beside him. He reached over and flipped a bank of switches on the instrument panel. "All communications to 'on,'" he said. Clay made a checkmark on his list. "All pre-engine start check complete," Clay replied.

"In that case," the senior trooper said, "let's give Beulah some exercise. Start engines."

Clay's fingers danced across the array of buttons on his seat arms and flicked lightly at the throttle knobs. From deep within the engine compartment came the muted, shrill whine of the starter engines, followed a split-second later by the full-throated roar of the jets as they caught fire. Clay eased the throttles back and the engine noise softened to a muffled roar.

Martin fingered a press-panel on the right arm of his seat.

"Car 56 to Philly Control," Ben called.

The speakers mounted around the cab came to life. "Go ahead Five Six."

"Five Six fired up and ready to roll," Martin said.

"Affirmative Five Six," came the reply, "You're clear to roll. Philly Check estimates white density 300; green, 840; blue 400; yellow, 75."

Both troopers made mental note of the traffic densities in their first one-hundred-mile patrol segment; an estimated three hundred vehicles for each ten miles of thruway in the white or fifty to one hundred miles an hour low lane; eight hundred forty vehicles in the one hundred to one hundred fifty miles an hour green, and so on. More than sixteen thousand westbound vehicles on the thruway in the first one hundred miles; nearly five thousand of them traveling at speeds between one hundred fifty and three hundred miles an hour.

Over the always-hot intercom throughout the big car Ben called out. "All set, Kelly?"

"I'm making coffee," Kelly answered from the galley. "Let 'er roll."

Martin started to kick off the brakes, then stopped. "Ooops," he exclaimed, "almost forgot." His finger touched another button and a blaring horn reverberated through the vehicle.

In the galley, Kelly hurled herself into a corner. Her body activated a pressure plant and a pair of mummy-like plastifoam plates slid curvingly out the wall and locked her in a soft cocoon. A dozen similar safety clamps were located throughout the car at every working and relaxation station.

In the same instance, both Ben and Clay touched another plate on their control seats. From kiosk-type columns behind each seat, pairs of body-molded crash pads snapped into place to encase both troopers in their seats, their bodies cushioned and locked into place. Only their fingers were loose beneath the spongy substance to work arm controls. The half-molds included headforms with a padded band that locked across their foreheads to hold their heads rigidly against the backs of their reinforced seats. The instant all three crew members were locked into their safety gear, the bull horn ceased.

"All tight," Ben called out as he wiggled and tried to free himself from the cocoon. Kelly and Clay tested their harnesses.

Satisfied that the safety cocoons were operating properly, Ben released them and the molds slid back into their recesses. The cocoons were triggered automatically in any emergency run or chase at speeds in excess of two hundred miles an hour.

Again he kicked off the brakes, pressed down on the foot feed and Car 56—Beulah—rolled out of the Philadelphia motor pool on the start of its ten-day patrol.

The motor pool exit opened into a quarter-mile wide tunnel sloping gently down into the bowels of the great city. Car 56 glided down the slight incline at a steady fifty miles an hour. A mile from the mouth of the tunnel the roadway leveled off and Ben kicked Beulah up another twenty-five miles an hour. Ahead, the main tunnel ended in a series of smaller portal ways, each emblazoned with a huge illuminated number designating a continental thruway.

Ben throttled back and began edging to the left lanes. Other patrol cars were heading down the main passageway, bound for their assigned thruways. As Ben eased down to a slow thirty, another patrol vehicle slid alongside. The two troopers in the cab waved. Clay flicked on the "car-to-car" transmit.

The senior trooper in Car 104 looked over at Martin and Ferguson. "If it isn't the gruesome twosome," he called. "Where have you two been? We thought the front office had finally caught up with you and found out that neither one of you could read or write and that they had canned you."

"We can't read," Ben quipped back. "That's why we're still on the job. The front office would never hire anyone who would embarrass you two by being smarter than either of you. Where're you headed, Eddie?"

"Got 154-north," the other officer said.

"Hey," Clay called out, "I've got a real hot doll in Toronto and I'll gladly sell her phone number for a proper price."

"Wouldn't want to hurt you, Clay," the other officer replied. "If I called her up and took her out, she'd throw rocks at you the next time you drew the run. It's all for your own good."

"Oh, go get lost in a cloverleaf," Clay retorted.

The other car broke the connection and with a wave, veered off to the right. The thruway entrances were just ahead. Martin aimed Beulah at the lighted orifice topped by the number 26-W. The patrol car slid into the narrower tunnel, glided along for another mile and then turned its bow upwards. Three minutes later, they emerged from the tunnel into the red patrol lane of Continental Thruway 26-West. The late afternoon sky was a covering of gray wool and a drop or two of moisture struck the front face of the cab canopy. For a mile on either side of the police lane, streams of cars sped westward. Ben eyed the sky, the traffic and then peered at the outer hull thermometer. It read thirty-two degrees. He made a mental bet with himself that the weather bureau was off on its snow estimates by six hours. His Vermont upbringing told him it would be flurrying within the hour.

He increased speed to a steady one hundred and the car sped silently and easily along the police lane. Across the cab, Clay peered pensively at the steady stream of cars and cargo carriers racing by in the green and blue lanes—all of them moving faster than the patrol car.

The young officer turned in his seat and looked at his partner.

"You know, Ben," he said gravely, "I sometimes wonder if those old-time cowboys got as tired looking at the south end of northbound cows as I get looking at the vanishing tail pipes of