"You think the powder's damp?"

"Could be." He feared the mist might have moistened the charge, but there was nothing he could do about it now. They began walking, but, by landing farther south Sharpe had unwittingly put them deeper in the marshes and the going was hard. The ground, at best, was squelchy, at worst it was a glutinous mess and, because the tide was ebbing, the land was newly waterlogged. Sharpe cut north, reckoning that the land there was firmer, but the five fugitives were increasing their lead with every step. "Take your boots off," Harper recommended. "I grew up in Donegal," he went on, "and there's nothing we don't know about bog-land."

Sharpe kept his boots on. His came up to his knees and were not such an impediment, but the others pulled off their shoes and they made faster progress. "All we need to do," Sharpe said, "is get close enough to shoot the bastards."

"Why don't they look around?" Sarah wondered.

"Because they're dozy," Sharpe said, "because they reckon they're safe." They had reached the firmer ground, a very slight rise between the marsh and the northern hills, and they hurried now, closing the gap on the five men who still looked as carefree as if they were out for a day's rough shooting. They were strolling, guns slung, chatting. Ferragus towered over his companions and Sharpe had an urge to kneel, aim and shoot the bastard in the back, but he did not trust the rifle's charge and so he kept going. Way off to his left he could see some buildings in the mist: a couple of cottages, a barn, some sheds and a larger house and he supposed it had been a prosperous farmstead before the engineers flooded the valley. He suspected the marshy ground extended almost to those half-seen buildings, which seemed to be on higher land, and he reckoned Ferreira would try to reach the farm and then head south. Or else, if the brothers realized they were being followed, they would hole up in the buildings and it would be hell to get them out and Sharpe began to hurry, but just then one of the men turned and stared straight at him. "Bugger," Sharpe said, and dropped to his knee.

The five men began running, a clumsy run because they were carrying guns and coins. Sharpe lined the sights, pulled the cock all the way back and squeezed the trigger. He knew instantly he had missed because the rifle hesitated, then gave a wheezing cough instead of a bang, which meant that the mist-dampened charge had fired, but weakly, and the bullet would have dropped short. He began reloading as Harper and Vicente fired and one of their bullets must have struck a man in the leg because he fell. Sharpe was ramming a new charge down. There was no time to wrap the bullet in leather. He wondered why the hell the army did not issue ready-wrapped bullets, then he pushed the ramrod down onto the ball, primed, knelt and fired again. Joana and Sarah, even though their muskets were futile at this range, both fired. The man who had fallen was on his feet again, showing no sign of being wounded because he was running hard to catch up with his companions. Harper fired and one of the men swerved violently as if the ball had gone frighteningly close to him, and then all five were on the higher ground and running for the buildings. Vicente fired his second shot just as the men vanished among the stone walls.

"Damn," Sharpe said, ramming a new bullet down.

"They won't stay there," Vicente said quietly. "They'll run south."

"We'll go through the marsh, then," Sharpe said, and he set off, splashing into mud and waterlogged grass. He was aiming to get south of the farmstead and so cut off the fugitives, but almost at once he realized the attempt was probably futile. The ground was a morass, there were floods ahead, and when he was up to his knees in water he stopped. He swore because he could see the five men leaving the farm and heading south, but they were also balked by floodwater and turned west again. Sharpe put the rifle to his shoulder, led Ferragus with the sights and pulled the trigger. Harper and Vicente also fired, but they were shooting at moving targets and all three bullets missed, then the five men were gone in the persistent mist. Sharpe fished out a new cartridge. "We tried," he said to Vicente.

"They'll be in Lisbon by this evening," Vicente said. He helped Sharpe struggle free of a patch of mud. "I will report Major Ferreira, of course."

"He'll be long gone, Jorge. Either that or it'll be his word against yours and he's a major and you're a captain, so you know what that means." He stared into the western mist. "It's a pity," he said. "I owed that big bastard a beating."

"Is that why you followed him?" Sarah asked.

"As much as anything else." He rammed a new bullet down the rifle, primed the lock, closed the frizzen and slung the rifle. "Let's find dry land," he said, "and go home."

"They're not gone!" Harper said suddenly, and Sharpe turned to see, miraculously, that the five men were coming back to the farm. They were hurrying, looking into the mist behind them and Sharpe, unslinging the rifle, wondered what in hell was happening.

Then he saw the skirmish line. For a moment he was sure it had to be a British or a Portuguese company, but then he saw the blue coats and white crossbelts, saw the epaulettes, and saw that some of the men wore short sabers and he knew they were the French. And there was more than one company, for out of the mist a whole horde of skirmishers was appearing.

Then, from the west, came a splintering crackle of muskets. The skirmishers turned towards the sound, paused. The Ferreiras were in the farm buildings now. Harper cocked his rifle. "What in God's name is happening?"

"It's called a battle, Pat."

"God save Ireland."

"He can start by saving us," Sharpe said. For it seemed that, though his enemies were trapped, the French had trapped him.

A vagary of the mist saved Bullen. He was alert, all his men were alert, for shots had sounded to the east, somewhere out in the inundated land towards the river and Bullen had been about to order Sergeant Huckfield to take a dozen men to investigate the sounds when a swirl of wind, driven down from the southern heights, shifted a patch of whiteness on the western side of the ruined barn and Bullen saw men running. Blue-coated men, carrying muskets, and for a second or two he was so astonished that he did nothing. The French, he could hardly believe they were French, were already south of him, evidently running to get between the barn and the forts, and he understood instantly that he could not extricate the men back to the hills. "Sir!" one of the riflemen called, and the word jarred Bullen out of his shock.

"Sergeant Read!" Bullen was trying to think of everything as he spoke. "Redcoats to the farm. The place we went last night. Take your packs!" Bullen had led a patrol to the big farmstead in the dusk. He had followed the raised track at low tide, crossed the stream on the small stone bridge, poked around the deserted buildings, then explored a little way towards the Tagus until he was stopped by marshland. The farm was his best refuge now, a place with stone walls, marsh all around it, and only one approach: the track from the bridge. So long as he could reach that rough road before the French. "Riflemen!" he ordered. "Here! Sergeant McGovern! Pick two men and get Captain Slingsby out of here. Rifles? You're the rearguard! Let's go!"

Bullen went last, walking backwards among the riflemen. The mist had closed again and the enemy was hidden, but when Bullen was only thirty paces from the barn the French appeared there, charging into the ruins, and one of them saw the greenjackets off to the east and shouted a warning. Voltigeurs turned and fired, but their volley was a ragged effort because they were in skirmish order, although enough of the balls went dangerously close to Bullen and he backed away faster. He could see a half-dozen of the Frenchmen running towards him and he was about to turn and flee when some rifles snapped and two of the Frenchmen went down. Blood was bright on grubby white breeches. He turned and saw that the greenjackets were in skirmish order. They were doing what they were trained to do, and now some of them fired again and another Frenchman jerked backwards.