An hour later Bolitho climbed up through the Euryalus’s gilded entry port and removed his hat to the pipes’ shrill greeting and the stamp and slap of muskets.

Keverne looked unusually preoccupied. When they reached the quarterdeck he said shortly, “The surgeon is worried about the admiral, sir. He is very low, and I am afraid for him.”

Bolitho glanced at Allday whose face had been screwed up with burning curiosity ever since the barge had reached the jetty.

“Keep the bargemen standing by. I may require them soon.”

Then he strode aft and down to the admiral’s quarters.

Lying quietly in his cot the admiral seemed even smaller and more fragile. His eyes were shut, and there was blood on his shirt-front as well as the handkerchief.

Bolitho glanced at the surgeon, a thin, wiry man with unusually large and hairy hands.

“Well, Mr Spargo?”

He shrugged. “I cannot be sure, sir. He ought to be on shore. I am only a ship’s surgeon.” He shrugged again. “But the effort of moving him now might be fatal.”

Bolitho nodded, his mind made up.

“Then leave him here and watch him well.” To Keverne he said, “Come up to my cabin.”

Keverne followed him in silence until they had reached the wide cabin which ran the whole breadth of the poop. Through the open stern windows was a perfect view of St Anthony Head, moving slightly as the ship swung ponderously on the current.

“I have to go ashore again, Mr Keverne.” He must be careful not to involve his first lieutenant, yet at the same time he had to be primed enough to know what to do if the scheme misfired.

Keverne’s face was a mask. “Sir?”

Bolitho unclipped his sword and laid it on the table.

“There is no news of Vice-Admiral Broughton yet. Nor is there any hint of unrest ashore. Captain Rook’s boats will be alongside after our people have had their meal, and you can carry on with loading stores all afternoon and into the dog watches if the sea remains calm.”

Keverne waited, knowing there was more to come.

“Sir Charles is very sick, as you have seen.” Bolitho wished Keverne would show some curiosity, like Herrick would have done when he had been his first lieutenant. “So you will be in command until my return.”

“When will that be, sir?”

“I am not sure. Later tonight perhaps!”

He had Keverne’s interest roused at last.

“Is there something I can do to help, sir?” He paused. “Will there be trouble?”

“Not if I can prevent it. I will leave written orders for you to act upon if I am delayed for more than the night. You will open them and take whatever . . .” he held up his hand, “no, every necessary step to see that they are carried out without delay.” His mind grappled with the picture of the chart within his brain. It would take Euryalus more than two hours to up anchor and reach Veryan Bay, where the sight of her terrible armament would soon quell even the stoutest heart into submission. But by then it might be far too late.