Sienna Track kept the shoe on her kitchen table for three weeks. It was a woman's running shoe, still laced, found at the creek bend on the Stagmire trails. She had not called the police about it. She had run those fog-choked trails for six years, and she knew the police would file the shoe and forget it. She also knew the shoe's owner was the third jogger gone missing since spring. This morning she spread a paper sketch of the trail system across the table and weighed it down with a mug. She had no real map. No one did. The park service printed a brochure that stopped at the parking lot. So Sienna drew her own, line by line, from memory. She marked the creek bend with a black X. Then she sat back and stared at the single mark and understood the problem. One X was not a pattern. One X was a place she was afraid of. If she went hunting on the wrong stretch tomorrow, the predator would take someone else two miles away while she stood in the fog alone. She needed the other sites. She knew two joggers had been followed near the north fork in April. A third had been chased off the ridge path in May. She had heard the stories at the trailhead, traded over water bottles, never written down. Sienna spent the afternoon making calls. She reached a woman who had been followed for half a mile before the footsteps stopped. She reached a man who had felt watched from the ferns near a stone lookout tower south of the ridge. She wrote each location on the sketch and circled it. The sketch alone was not enough. Fog on those trails warped distance. A runner saying "about a quarter mile past the bridge" could mean anything. She went to the shed and took down the compass her father had left her, a heavy precision instrument with a lit dial that held true even in white-out. She would walk each reported site at dawn, take a true bearing, and pin the location on her sketch by angle and step count, not by guess. By nightfall she had five marked points. She drew lines between them. The marks did not scatter. They bent in a slow arc around the old stone lookout tower on the south ridge, the one the man had mentioned, the one ringed by trampled ferns. Every stalking had happened within sight of the tower's upper deck. The predator was not roaming. The predator was sitting up there and choosing. Sienna folded the sketch and put it in her jacket pocket with the compass. She left the laced shoe on the table. Tomorrow before sunrise she would climb the south ridge and look up at the lookout from below, and she would see whatever was looking back.

Sienna reached the trailhead before sunrise. She had planned to climb the south ridge and look up at the lookout from below. The plan changed when she saw the parked sedan beside the iron bell tower at the trailhead. A water bottle sat on the hood. Fresh tread marks went up the path. Someone had started up the trail ahead of her, alone, in the dark, straight toward the tower's sight line. She ran. The fog thickened as the path climbed. A hundred yards up, the trail passed through an old wooden gate strung with twisted branches, the last marker before the mist swallowed everything. Past the gate, distance lied. She stopped at the gate and listened. Footfalls ahead, steady, light. A woman's pace. Sienna could not see her. She could not shout either. A shout would carry up to the lookout and tell the watcher exactly where two runners stood. She turned back. She ran down to the iron bell tower at the trailhead and grabbed the rope. The tower bell was too loud, too long, a sound that would roll up the whole ridge and pin them both in place. She let the rope go. In her pack she carried a small brass hand bell with a wooden grip, the kind hikers clipped to belts for bears. She pulled it out and ran back up to the gate. She rang it once, sharp and short. The sound carried up the trail, no farther. She rang it again. Three quick strikes, the trailhead signal every Stagmire runner knew: turn around, trail closed. The footfalls above stopped. A pause. Then they came back down, faster now, confused but obedient. The jogger appeared out of the fog, a woman in a yellow jacket, breathing hard. She started to ask what was wrong. Sienna put a finger to her lips and walked her down to the trailhead without a word. At the sedan, she told the woman a bear had been seen on the ridge and the trail was closed until rangers cleared it. The woman thanked her and drove off. Sienna stood alone by the iron bell tower with the small bell still in her hand. The jogger was safe. The dawn ambush was gone. So was her one window. The watcher in the lookout had heard the bell, had heard the footfalls stop and reverse, and now knew someone at the trailhead was steering runners away from the ridge. She had announced herself without showing her face. She folded the sketch back into her pocket and looked up the empty trail. The predator had been sitting and choosing. Now it had something new to watch for, and she had lost the only morning it would not expect her.