Lightning

California Highway Patrol cruiser, and Klietmann knew they must have caught up with the officer who was going to encounter and arrest Laura Shane and her son. The cop was doing just under fifty-five in a fifty-five-mile-per-hour zone.
    "Kill him," Klietmann said over his shoulder to Corporal Martin Bracher, who was in the right rear seat.
    Klietmann glanced in the rearview mirror, saw no traffic behind; there was oncoming traffic, but it was in the southbound lanes. He swung into the northbound passing lane and began to move around the patrol car at sixty.
    In the back Bracher rolled down his window. The other rear window was already open because Hubatsch had shot it out when he had killed the Palm Springs cop, so wind roared noisily through the back of the Toyota and reached into the front seat to flutter the map that was still in von Manstein's lap.
    The CHP officer glanced over in surprise, for motorists probably seldom dared pass a policeman who was already driving within a couple of miles of the speed limit. When Klietmann pressed the Toyota past sixty, it shimmied and coughed, still accelerating but grudgingly. The policeman took note of this indication of Klietmann's determined breaking of the law, and he tapped his siren lightly, making it whoop and die, which apparently meant that Klietmann was to fall back and pull to the shoulder of the road.
    Instead the lieutenant nursed the protesting Toyota up to sixty-four miles an hour, where it seemed in danger of shaking itself apart, and that was just fast enough to pull slightly ahead of the startled CHP officer, bringing Bracher's rear window in line with the patrol car's front window. The corporal opened fire with his Uzi.
    The police cruiser's windows imploded, and the officer was dead in an instant. He had to be dead, for he had not seen the attack coming and surely had taken several rounds in the head and upper body. The patrol car swung toward the Toyota and brushed it before Klietmann could get out of the way, then veered toward the shoulder of the road.
    Klietmann braked, falling back from the out-of-control cruiser. The four-lane highway was elevated about ten feet above the desert floor, and the patrol car shot past the unguarded brink of the shoulder. It was airborne for a few seconds, then came down so hard that some of its tires no doubt blew out on impact. Two doors popped open, including that on the driver's side.
    As Klietmann moved into the right lane and drove slowly by the wreckage, von Manstein said, "I can see him in there, slumped over the wheel. He's no more trouble to us."
    Oncoming drivers had witnessed the patrol car's spectacular flight. They pulled to the verge on their side of route 111. When Klietmann glanced in his rearview mirror, he saw people getting out of those vehicles, good Samaritans hurrying across the highway to the CHP officer's rescue. If some of them realized why the cruiser had crashed, they had decided not to pursue Klietmann and bring him to justice. Which was wise.
    He accelerated again, glanced at the odometer, and said, "Three miles from here, that cop would've arrested the woman and boy. So be on the lookout for a black Buick. Three miles."

    Standing in the bright desert sun on the patch of barren shale near the Buick, Laura watched Stefan slip the strap of the Uzi over his right shoulder. The carbine hung freely and did not interfere with the backpack full of books.
    "But now I wonder if I should take it," he said. "If the nerve gas works as well as it ought to, I probably won't even need the pistol, let alone a submachine gun."
    "Take it," Laura said grimly.
    He nodded. "You're right. Who knows."
    "Too bad you don't have a couple of grenades too," Chris said. "Grenades would be good."
    "Let's hope it doesn't get
that
nasty back there," Stefan said.
    He switched off the pistol's safeties and held it ready in his right hand. Gripping the canister of Vexxon by its heavy-duty, fire-extinguisher-type handle, he picked it up with his left hand and tested its weight to see how his injured shoulder would react.
    "Hurts a little," he said. "Pulls at the wound. But it's not bad, and I'll be able to control it."
    They had cut the wire on the canister's trigger, which allowed the manual venting of the Vexxon. He curled his finger through that release loop.
    When he finished his work in 1944, he would make a final jaunt to their time again, 1989, and the plan was for him to arrive only five minutes after he departed. Now