Swan looked at the Turk. The man looked exactly as Swan himself had felt at Castillon in the shattering moments after the end of fighting.

‘He’s—’ Swan looked at the Italian, too wiped by the fighting to come up with the words.

‘I agree. Ser Marco?’

The capitano looked at their prisoner. ‘He’s someone important. He fought gallantly, I’ll give the bastard that. But the Arsenali will kill him.’

Events proved him wrong. The third Turkish galley had an enormous red flag amidships, and it drove the second galley off quite convincingly.

‘Ottoman galley,’ said Ser Marco. His voice sounded thick – his slight lisp was very pronounced. He watched the enemy ship. He spoke again after minutes had passed and they hadn’t been attacked. ‘Those are Smyrna galleys. There’s a hundred flavours of Turks – and Syrians, and worse.’ He shrugged. ‘By God’s nose, they may even be renegade Greeks.’ He spat over the side. ‘The new galley is Ottoman. He may recognise our flag. He may even—’

Swan pointed. ‘You’re bleeding, messire the capitano.’

Ser Marco looked down, saw the blood running like a fresh spring stream over the cuisse on his hip, and fell flat to the deck.

They had to cut the straps on his leg armour – hours of work for an armourer to replace – to get at the wound. His blood was spurting away, his boots were soaked, and Alessandro whipped a sharp knife out of Swan’s hand and slit the man’s hose.

The wound was just below the groin. Alessandro looked at Swan, who shrugged. He tried putting pressure directly on the wound and the blood spurted past his fingers. He tried to put pressure above it – the man’s muscles were as hard as rock, and he could slow the flow but not stop it.

Cesare, wearing a corselet and an open-faced bassinet, leaned over, pulled off his helmet, and spat. ‘The bishop has a doctor,’ he said.

Swan knelt there, feeling like a fool, his hand pressed into another man’s groin. The blood seeped past his forefinger slowly. He pressed as hard as he could – Alessandro pushed back from the other side of Ser Marco’s hip. He wanted his helmet off. He wanted all his armour off, and he wanted to know what was happening. The mate was down – dead, Swan assumed – and Alessandro was issuing orders as if born to it, which indeed he was.

The silence from the oarsmen was ominous.

The bishop’s doctor was sent for. The bishop and all his suite had spent the battle in the captain’s coach in the stern. Swan thought the worse of them for it – Cesare, for example, had blood on his sword and four long cuts on his forearm, like the claw marks of some great beast.

Ser Marco’s eyes fluttered open. ‘Make sail!’ he said, and raised an arm.

Swan refused to be distracted, and kept the pressure on.

Alessandro slapped Cesare on the hip. ‘Take over,’ he said.

Cesare knelt in a clatter of metal. ‘So much blood,’ he said. His face was pale. ‘Such a fight.’

Swan just wanted his helmet off. There was shouting behind him. The only man he could see through the forest of legs on the quarterdeck was the Italian archer, who had just wiped his forehead and put a fresh arrow on his string.

The doctor burrowed through the crowd, his black clothes flapping like a raven’s wings. His face was as pale as milk, and he was obviously terrified. But he knelt, ran his hand down the capitano’s thigh, and nodded.

He was a small man, and his hands shook. ‘Give me room,’ he said acerbically. He looked at Swan. ‘Do you know any anatomy?’ he asked.

Swan couldn’t shrug, owing to his kneeling posture and his armour. ‘Yes. No.’

‘You found the artery.’ The doctor nodded. ‘I need a sharp knife, some vinegar, a needle, and thread.’ He looked at Swan. ‘Don’t let go, young man. Your captain’s life depends on it.’

Alessandro leaned in. ‘I need him. If they come at us . . . they’re coming alongside. Thomas—’

The doctor shook his head rapidly and looked even more like a bird. ‘If he lets go of the artery, Ser Marco dies.’

Alessandro sighed. ‘If they board us—’ he said. His eyes met the Englishman’s.

If they board us, let the capitano die and come and fight.

The sun was grilling him. His slightly too-tight breast and back armour was biting into his hip and the base of his waist, and the pain was growing, running slowly up his side.

The bishop was there. ‘I must shrive him,’ he said, and pushed against Swan’s back. ‘Out of my way.’

The doctor looked up. ‘Back off,’ he said, his voice full of authority.

Bravo, little man.

‘You—’ sputtered the Bishop of Ostia.

‘Off the deck, Your Grace,’ Alessandro said.

‘Ser Marco is my—’

‘Clear the deck, Your Grace. The Turks are coming aboard.’ Alessandro’s voice was low and gentle.

The bishop turned and fled.

An Arsenali brought vinegar. Peter leaned over, a threaded needle in his hand. ‘Heavy linen cord. I waxed it,’ he said in his Flemish-accented English.

Swan translated but the doctor had already snatched the needle. He nodded at Peter and turned to Swan.

‘This is what we’re going to try,’ he said. ‘You hold on. As hard as ever you can. I will open the skin a little more, catch the end of the artery – I hope – in this loop.’ He’d made a loop like a horse breaker’s lasso. ‘I pull tight. You keep holding. Let me pass seven loops around the artery and put the needle through and tie off. Then you let go. Any time before – pfft. He’s dead. Yes? Are you ready?’

Swan knew that it was foolish to feel that the pain in his hip was important when they were trying to save the captain’s life – but he muttered, ‘Hurry, then!’

The doctor took a deep breath. He was praying.

This is a man with a genuine courage, Swan thought. The Turkish galley was towering over them. The oarsmen were silent. Twenty heads leaned into the circle to watch the doctor work.

‘I need light,’ he said.

Men made room.

The doctor’s hands moved. He slashed the skin. Blood flowed. He folded a flap back, and his left hand went in, the loop trailed in the blood. The blood spread over Swan’s hands, and he felt the artery under his forefinger begin to slip.

The loop missed. Swan couldn’t really see – he couldn’t get his head at the right angle, and his armet suddenly weighed a ton, and there was sweat flowing over his eyebrows and he couldn’t move. He grunted – it was not exactly pain, but it was a lot of minor discomforts piled one on another.

‘Fuck!’ said the doctor. ‘Tell the Dutchman to prepare me another loop.’

Swan said, ‘Peter—!’ but the Fleming understood enough.

‘Here! I’ve made three.’

The doctor muttered – something about the white of the waxed thread his only hope.

Something happening aft.

‘Got it,’ said the little doctor. ‘Got it! Hold hard!’

But the artery was slipping. It felt like a snake, a hard worm under Swan’s finger, and he brought his thumb down alongside the finger.

‘One. Two,’ the doctor counted. ‘Three!’

He paused. There were a series of rapid motions – the Turkish ship was doing something, the sailors were moving, the doctor thrust the needle hard – hard enough to make the muscles stand out on his neck.

‘Five,’ he said. ‘Six. Seven. Second stitch. Third stitch.’ The man looked triumphant – like a man who had won a serious fight, or won a fortune on the turn of a card. He radiated joy.

He looked over at Swan. Took Peter’s third loop, and took a deep breath. ‘Let go,’ he said. ‘Slowly.’

Swan found it hard to let go. His thumb and forefinger were stuck together with blood and pain.

‘Swan!’ Alessandro shouted.

He got to his feet. His knees and stomach muscles didn’t want to hold him up.

The doctor raised his face. ‘It’s holding,’ he said. He was staring into the blood and flesh.

Swan stumbled.