Cold Fire

from under the motor home, and one of them punctured the tire beside which he'd been standing.
    Instead of retreating into the Roadking, he dropped back to the ground, fell flat, and shoved the shotgun under the vehicle, figuring to take his adversary by surprise. But the guy was already out from under on the other side. Jim could see only the black cowboy boots hurrying toward the rear of the motor home. The guy turned the corner—and vanished.
    The ladder. At the right rear corner. Next to the racked motorcycle.
    The bastard was going onto the roof.
    Jim hustled all the way under the Roadking before the killer could look over the edge of the roof, spot him, and fire down. It was no cooler beneath the vehicle, because the sun-scorched earthen shoulder radiated the heat it had been storing up since dawn.
    Two cars roared by on the highway, one close after the other. He hadn't heard them coming, maybe because his heart was beating so hard that he felt as if he were inside a kettle drum. He cursed the motorists under his breath, then realized they couldn't be expected to stop when they saw a guy like Dork Knob prowling the top of the motor home with a handgun.
    He had a better chance of winning if he continued to do the unexpected, so he immediately crawled on his belly, fast as a marine under fire, to the rear of the Roadking. He twisted onto his back, eased his head out past the rear bumper, and peered up across the Harley, at the ascending rungs that appeared to dwindle into blazing white sun.
    The ladder was empty. The killer was already on the roof. He might think that he had temporarily mystified his pursuer with his vanishing act, and in any case he wouldn't expect to be followed with utter recklessness.
    Jim slid all the way into the open and went up the ladder. He gripped the hot siderail with one hand, holding the compact shotgun with the other, trying to ascend as soundlessly as possible. His adversary was surprisingly quiet on the aluminum surface above, making barely enough noises of his own to cover an occasional pop and squeak from the aged rungs under Jim's feet.
    At the top, Jim cautiously raised his head and squinted across the roof. The killer was two-thirds of the way toward the front of the Roadking, at the right side, looking down. He was moving along on hands and knees, which must have hurt; although the time-stained white paint reflected a lot of the sun, it had stored sufficient heat to sting even well-callused hands and to penetrate blue denim. But if the guy was in pain, he didn't show it; he was evidently as suicidally macho as his dead buddy had been.
    Jim eased up another rung.
    The killer actually lowered himself onto his belly, though the roof must have scorched instantly through his thin T-shirt. He was trying to maintain as low a profile as possible, waiting for Jim to appear below.
    Jim eased up one more rung. The roof now met him at mid-torso. He turned sideways on the ladder and jammed one knee behind the outer upright, wedging himself in place so he would have both hands for the shotgun and so the recoil would not knock him backward to the ground.
    If the guy on the roof didn't have a sixth sense, then he was just damned lucky. Jim had not made a sound, but the creep suddenly glanced back over his shoulder and spotted him.
    Cursing, Jim swung the shotgun around.
    The killer flung himself sideways, off the roof.
    Without getting in a shot, Jim pulled his knee from behind the upright and jumped from the ladder. He hit the ground hard but kept his balance, stepped around the corner of the motor home, and squeezed off one round.
    But the creep was already bolting through the side door. At worst, he caught a few pellets in one leg. Probably not even that.
    He was going after the woman and child.
    Hostages.
    Of maybe he just wanted to slaughter them before he was cut down himself. The past couple of decades had seen the rise of the vagabond sociopath, roaming the country, looking for easy prey, racking up long lists of victims, attaining sexual release as much from brutal murder as from rape.
    In his mind, Jim heard the anguished voice of the dying man in the station wagon: Lisa … Susie … My wife, daughter…
    With no time for caution, his anger having grown greater than his fear, he raced after the killer, through the door, into the Roadking, entering aft of the cockpit. His sun-dazzled eyes couldn't handle the comparative gloom of the motor home's interior, but he was able to see