PROLOGUE

      Sark stopped, sank to his knees and listened, but the only sounds he could hear were the pounding of his own heartbeat and the rasping wheeze at the back of his throat as he fought desperately to draw air into his burning lungs. He tried to delay his inhalations in an attempt to slow down his breathing, but the effect was marginal. Moisture from the soggy ground had begun to soak into his breeches, adding to his discomfort. He raised himself into a squat and took stock of his surroundings, eyes probing the darkness for a familiar landmark, but to his untutored eye one stretch of featureless marshland looked much like any other.

      A hooting cry came from behind and he stiffened. Owls hunted across the levels at night. Sometimes you could hear the beat of their wings if you were quiet enough. Sark remained where he was, crouched low. It had probably been an owl, but there were other creatures abroad, Sark knew, and they were hunting too.

      There was movement to his left, accompanied by a soft grunt. The short hairs rose across the back of Sark’s neck and along his forearms. He turned slowly, not daring to exhale, and found himself under close scrutiny from a large sheep. For several seconds, man and beast regarded each other in eerie silence. The animal was not alone. Sark could make out at least a dozen more, huddled behind.

      The ewe was the first to break eye contact. Backing off, it ambled away and began to herd its companions towards a clump of bushes. Sark breathed a sigh of relief.

      Then he heard the distant baying and the bile rose into his mouth.

      They were using dogs.

      Sark glanced out of the corner of his eye and saw the sheep pause in their tracks as their ears picked up the unearthly ululation. Then, as if with one mind, the animals broke into a brisk trot. Within seconds they had vanished into the deepening gloom.

      Sark turned and tried to locate the direction of the sound, but the darkness, allied to the dips and folds in the ground, made it difficult to pinpoint the exact bearing.

      Ahead of him, the land had begun to rise. Sark inched forward, hoping the slope would provide the advantage of height and enable him to see further than his current position. Reaching the top of the bank, he elevated himself cautiously and stared back the way he had come. The first thing he saw was the bright flickering glow of a torch flame, then another, and another beyond that. From his vantage point he could see that the torchbearers were still some way off and that they were proceeding haphazardly. He suspected they were following the creek lines, but there was no doubt they were moving towards him, drawing inexorably closer with each passing second.

      There were more lights in the far distance. They were no more than pinpricks, and stationary, and he guessed these were the masthead lanterns of ships moored in the estuary. He wondered briefly if he shouldn’t have been heading towards rather than away from them, but he knew that hadn’t been an option. His pursuers were sure to have cut off that line of escape.

      He looked around and found he was at the edge of a dyke. The ditch stretched away from him, merging into the moonlit wetlands like a snake into the undergrowth. The smell from the bottom of the dyke was foul; a pungent, nostril-pinching mix of peat and stagnant water. There was another strong odour, too. He could see a heaped shape lying close to the water’s edge; the remains of a dead sheep. Presumably the animal had placed its foot in a rabbit-hole or some similar burrow, stumbled down the bank and become stuck in the bog, unable to extricate itself.

      Sark wondered how long it had taken the beast to die. He tried to ignore the mosquitoes whining about his ears, knowing even though he could not feel their bite that they had already begun to feast upon his blood.

      Another drawn-out howl came looping out of the night. Sark felt the cold hand of fear clutch his heart and he cursed his inactivity. He shouldn’t have remained so long in one place. He got to his feet and began to run.

      He had a rough idea of where he was and the direction in which he was travelling. He had