Making a thirty-degree turn, Pendergast slackened his pace. There was little cover on the Mire beyond the odd tumulus of broken rock; the fog would be his only protection. That meant keeping low.

He continued on, moving as swiftly as prudence would allow, often pausing to probe with his foot. He knew Esterhazy would be following; the man had no choice. And he was a superb tracker, perhaps even superior to Pendergast himself. As he walked, he slipped a kerchief out of his bag and pressed it to his nose, trying to stem the flow of blood. He could feel the grating of a broken rib in his chest, a result of the fierce struggle. He silently reproached himself for not checking his rifle immediately before their departure. The rifles had been locked in the lodge’s gun room, as the rules required; Esterhazy must have used some ploy to get at his weapon. It only took a minute or two to remove a firing pin. He had underestimated his adversary; he would not do so again.

Suddenly he paused, examining the ground: there, in a gravelly patch, was the track of the stag they had spooked. He listened intently, peering behind from whence he had come. The mists were rising from the Mire in tattered columns, momentarily obscuring and disclosing views of the endless moors and distant mountains. The tor on which they had fought was wreathed in mist, and his pursuer was nowhere to be seen. A deep gray light lay over all, with a darkness looming to the north, occasionally shot through with flickers of lightning — an approaching storm.

Reloading his Colt, Pendergast headed still deeper into the Mire, following the faint track of the stag as it picked its way along an invisible path known only to itself, threading ingeniously between quaking bogs and sucking pools.

It wasn’t over. Esterhazy was in hot pursuit. There could be only one outcome: one of them would not return.

PENDERGAST FOLLOWED THE FAINT TRACK of the stag as it meandered through the shivering fens of the Mire, keeping to firm ground. As the storm moved in, the sky grew darker and distant thunder rolled over the moors. He moved swiftly, pausing only long enough to examine the ground for signs of the stag’s passage. The Mire was especially treacherous this time of year, when the long summer had allowed green grass to overspread many of the pools of quaking bog, leaving a deceptive crust that would break under the weight of a man.

Lightning flashed and rain started down, heavy drops whirling out of the leaden sky. The wind rose, rustling over the heather, carrying up a miasmic smell from the Inish Marshes to the west: a vast, sheeted surface of water covered with patches of reeds and cattails, swaying in the wind. For more than a mile, he followed the stag’s trail. It gradually led to higher and firmer ground, and then — through a sudden gap in the mists — Pendergast spied a ruin ahead. Silhouetted against the sky at the top of a rise stood an old stone corral and shepherd’s hut, fitfully illuminated by the flickering lightning. Beyond the hill lay the ragged edges of the marshes. Examining the broken furze, Pendergast noted that the stag had passed through the ruins and continued toward the vast swamp on the far side.

He mounted the hill and quickly explored the ruin. The hut was unroofed, the stone walls broken and covered with lichen, the wind moaning and whistling through the tumbled remains. Beyond, the hill fell away to a swamp that lay hidden in a murk of rising vapors.

The ruin, commanding the high ground, offered an ideal defensible position, with unobstructed views in all directions: a perfect place from which to ambush a pursuer or stand against an attack. For those reasons, Pendergast passed it by and continued down the hill toward the Inish Marshes. Again he picked up the track of the stag and was momentarily puzzled; the stag seemed to be heading into a dead end. The animal must have felt harried by Pendergast’s pursuit.

Circling back along the verge of the marsh, Pendergast came to an area of thick reeds where an esker of cobbled ground ambled out into water. A string of glaciated rocks provided a small but obvious cover; he paused, removed a white handkerchief, wrapped it around a stone, and placed it in a precise location behind the boulders. He then passed by. Beyond the finger of cobbled ground, he found what he had been looking for: a flattish rock just under the surface of the water, surrounded by reeds. He could see that the stag had also gone this way, heading into the marshes.

The natural blind was an unlikely place to take cover and an even more unlikely place to attempt a defense. For those reasons, it would suffice.

Wading out to the stone, being careful to avoid the morass on either side, Pendergast took a position among the reeds, well hidden from view. There he crouched, waiting. A spur of lightning split the sky, followed by the crash of thunder; more fog came rolling in from the marshes, temporarily obscuring the ruins on top of the hill. No doubt Esterhazy would arrive soon. The end was in sight.

Judson Esterhazy paused to examine the ground, reaching down and fingering some gravel that had been pushed aside by the passage of the stag. Pendergast’s footprint was much less obvious, but he could see it in the form of pressed earth and flattened stems of grass nearby. The man was taking no chances, continuing to follow the stag on its winding course through the Foulmire. Clever. No one would dare venture in here without a guide, but a stag was as good a guide as any. As the storm rolled in, the fogs thickened; it became dark enough that he was glad to have the flashlight — carefully shielded — to examine the trail.

Pendergast clearly intended to lure Esterhazy out into the Mire to kill him. For all his pretensions to southern gentility, Pendergast was the most implacable man he had ever met, and a dirty bastard of a fighter.

A bolt of lightning illuminated the desolate moors and he saw, through a break in the mist, the ragged outline of a ruin standing on a rise a quarter mile away. He paused. That would be a logical place for Pendergast to go to ground and await his arrival. He would approach the ruin accordingly; ambush the ambusher… But even as his practiced eye roamed over the site, he considered that Pendergast was too subtle a man to take the obvious course of action.

Esterhazy could assume nothing.

There was very little cover in this barren landscape, but by timing his movements he could take advantage of the heavy fogs coming in from the marshes to provide the cover he needed. As if on cue, a new bank of mist rolled in and he was enveloped in a colorless world of nothing. He scurried up the hill toward the ruins, able to move fast on the harder ground. About a hundred yards below the summit, he circled the hill so as to approach from an unexpected direction. The rain came down, heavier now, while the rumblings of thunder marched away over the moors.

He crouched and took cover as the fogs cleared for a moment, allowing him a glimpse of the ruins above. No sign of Pendergast. As the fog rolled back in he moved up the side of the hill, rifle in hand, until he reached the stone wall surrounding an old corral. He moved along it, keeping low, until another break in the mist allowed him to peer through a gap in the rocks.

The corral was vacant. But beyond it stood the roofless hut.

He approached the structure from along the perimeter of the corral, keeping below the wall. In a moment he had flattened himself against its rear wall. Creeping up to a broken window, he waited for another gap in the fog. The wind picked up, sighing through the stones and covering the faint sounds of his own movement as he readied himself: and then, as the air cleared a little, he swung around into the window and swept his rifle across the inside of the hut, covering it from corner to corner.