As soon as he disappeared from sight around the last bend in the trail before it leveled out in the trees on high ground, Anna left the edge of the escarpment.

Situated behind a dense stand of gray-leaf oak near a bend in the trail, she began again to wait. By holding down a branch, she could see almost to where the trail broke through the boulders on the edge of the escarpment. A quarter of a mile of trail was hidden from view. Unless Karl took off crosscountry at that point, she would have him in sight again within minutes.

Scarcely had she finished her thought when he appeared. Even half a mile away, he looked enormous. The battered, lumpy face was set, the wiry ogre head held low. He charged up the trail like a bull. For the first time since she'd started this pursuit, Anna felt afraid. Intent on planning, on hiding, reality had been pushed from her mind: she was stalking a man she believed may have murdered two people and tried, most brutally, to murder her. Despite the revolver she felt unpleasantly small and fragile, wrists and neck breakable as toothpicks.

Karl's long legs, swinging like tree trunks, ate up the trail. Stones crunched under his heavy boots. Feeling exposed, she held her breath as he approached, looked down as if the force of her eyes upon him would bring his gaze up and she would be discovered.

Without any change in rhythm, the footfalls passed. Anna opened her eyes. This small success calmed her. So might a lion sit atop a boulder, unseen, and watch its prey go by. This was natural, not supernatural. Karl would not feel her eyes. If she kept her wits about her she would be okay.

Sacrificing time for silence, she worked out of the scrub oak, then ran lightly down the trail. Having chosen tennis shoes over hiking boots, she made very little noise. Glimpses of Karl's red pack showed through the trees when she got close or when the trail curved back on itself sharply.

Three-quarters of a mile from the boundary between the park and the Lincoln, the trail broke free of the forest and followed a stony spine through low-growing shrubs and succulents.

As she hit the open stretch, Karl was less than fifty yards in front of her. Anna dropped down behind a rock and followed him with her ears. When she could no longer hear his grinding steps she peeked out. His wiry orange hair was just disappearing over the hogback and down a gentle slope.

He would be approaching the boundary fence. The forest began again there, thicker and denser in the moist hollow between the ridges of the two canyons.

Anna trotted slowly down the trail, aware that if Karl stopped to pee or take a drink or look at the view, she could come upon him more suddenly than she intended. She had a lie ready for such an event but she hoped not to have to use it. If Karl was the killer he probably wouldn't buy it. If he wasn't, she probably wouldn't need it.

Slowing, she came over the rise. Below her was the barbed wire fence and the rusting revolving gate. Beyond she could see about a mile of trail winding up a steep slope in the Lincoln. To the left North McKittrick Canyon dropped off in a sheer stone cliff. To the right, beyond the gate, the forest crowded up to the trail.

Karl was gone.

It crossed Anna's mind that he'd seen her, was waiting behind rock or tree and would reach out one great hairy arm like the ogre he so resembled. She stopped a moment, reassured herself he'd not seen her, and ran on. If he'd gone off trail anywhere before the fence she'd most likely be able to see him still. A hundred or so feet of scrub lay between the trail and the more heavily wooded area.

At the revolving gate she slowed to a creep, her eyes on the ground. The trail was bone dry and packed hard. A bad surface for tracking. It was also seldom used and Karl was a heavy man. A toe print, the familiar star and waffle horseshoe pattern of NPS boots, was imprinted in the dust. Four feet or so away, a scuffed mark: whitish sand and stone scraped away exposing the darker soil beneath. Anna measured off another yard and a third and looked. In the normal course of events, a foot must have fallen there.

If there was a sign of Karl's passing, she could not find it. Another four feet were marked off. Nothing. She went back to where she'd found the scuff and studied the side of the trail. A line, very faint, probably an animal track, led off into the trees. Several feet down it a pinecone had been crushed absolutely flat. Not clipped or partially broken as by a hoof, but flattened entirely.

Anna ran down the faint track. Indians, she'd read time and again, had run through the forest silently. Not the Lincoln, she decided. Careful as she was, her soft-soled sneakers made a distinct rustling in the dry grass and needles. Even the tiniest of snakes would be heard slithering through this high desert woodland.

Red, a fragment no bigger than a songbird, flickered ahead. Karl was in front of her. She could see his right shoulder and arm through the trees and underbrush. He stopped. A long second later Anna's command to her feet took effect and she, too, was still.

Karl's arm made no move. He didn't pull off his pack or reach for his water bottle. He hadn't stopped for a rest or a drink.

Karl was listening.

Anna was afraid to breathe and afraid to hold her breath. She'd run so far she knew if she tried, her lungs would rebel and she'd gasp aloud. The pounding of her heart, resounding through the woods like a jungle drum, seemed enough to give her away.

The shoulder moved. Karl was turning. If she could see a scrap of red, what would he see? Blessing her foresight in wearing olive trousers and a khaki shirt, she slowly put her hands behind her, lowered her head till her face was pointing toward the ground, and willed herself utterly still. Her heartbeat slowed, she felt or imagined her energy slowing. Playing a mind-game with herself, Anna rooted, became as a tree.

Rustling, the crack of a twig: Karl was moving on. If he had seen her, he had chosen to lead her deeper into the woods.

Anna gambled he had not. Placing each foot with care, she followed. Trailing through the forest was easier than on the trail in the sense that she had ample cover. But walking quietly was proving difficult. Matching him step for step, she hoped the sound of his own passage would mask hers.

The animal track faded out. Karl walked on like a man sure of his way. Down a dry ravine, the narrow bottom littered with stones, Anna followed. It emptied out into a slightly wider drainage. Downstream it would end in a fall down into Big Canyon. Karl turned upstream.

Trees had been scoured out by boulders rolled on summer floods. Rocks twenty feet high and that many across were jumbled together forming caves and hallways. From boulder to boulder Anna crept, trusting more to the fact that there wasn't any direction to go but up the creekbed than to sight or sound in keeping on Karl's trail. To have kept him in view would've been impossible without the risk of being seen.

Sun reflected off rock and the heat in the airless confines of the wash became intense. Having soaked her handkerchief in water, Anna tied it around her head. It was one-fifteen. She had been following Karl for over two hours. Never once had he let up on the pace he had set down on the groomed trail leading across the canyon from the McKittrick Visitors Center. Anna breathed deeply, filling her lungs to aching. There would be time to rest when Karl did. If he did.

The perfect murder, she thought. He will keep going till I drop dead from exhaustion.

Karl had been nowhere in sight for nearly twenty minutes when Anna came to the end of the ravine. The drainage was a small box canyon, its head a hallway of stone ending in a rock wall fifty feet high. Karl was not there.

The ogre theory seemed more and more plausible and images of hidden doors, caves under spells of invisibility, stones that rotated to reveal underground passages flickered through Anna's head. She sat down in the shade of a courageous little pine tree that clung to a crevice and took a pull at her canteen.