Bolitho wished he had Keverne with him. But he was better used in handling the ship during his absence. Meheux was too valuable a gunnery officer, and Weigall too deaf for night action, so that left only the more junior lieutenants for the boat attack. He frowned. What was the matter with him? A lieutenant, any lieutenant, should be capable if he was worth his commission. He smiled in spite of taut nerves, thankful the darkness was hiding his face. He was beginning to reason like Broughton, and that would never do.

He thought too of Lieutenant Lucey, the young officer who had been so frightened before the first attack on the fort. He was astern somewhere in another cutter, waiting to lead his men into the breached wall with only the haziest idea of what was awaiting him.

And Calvert, he wondered how he was managing, out there on the hillside. When Bolitho had explained how he wanted the marines under Giffard to play their part in the final assault across the causeway, Broughton had snapped, “Calvert can convey the instructions to Captain Giffard.” He had studied the flag lieutenant without pity. “Do him good!”

Poor Calvert had been terrified. With a midshipman and three armed seamen for protection he had been taken ashore at dusk to face a dangerous and painful march across the hills to carry the orders to the marines, who should by now be ready and waiting to move. Giffard must be thankful, Bolitho thought. After sweating and panting in the sun’s glare all day, with only their pack rations and water flasks to sustain them, they would be in no mood for half measures.

The tiller squeaked and he felt the hull lift sluggishly across a fast ripple of water. They were rounding the headland now, the bay opening up beyond the bargemen’s heads in a pitch-black curtain.

He held his breath. And there it was. The fortress, like a pale rock, unlit but for a solitary window high up in the nearest wall, and strangely threatening against the other darkness.

“Very quietly, lads!” He stood to peer above the oarsmen, very conscious of the noises of boat and water, of heavy breathing and his own heart.

The current was carrying them to the left of the fort, and he was thankful that one calculation at least was proving correct. He saw another pin-prick of light far beyond the fortress, and guessed it was the anchored brig’s riding lantern. With any luck Broughton would have a small addition to his squadron before dawn.

He dropped on one knee and very gently opened the shutter of a lantern just a fraction of an inch, yet for those brief seconds as it played across his watch it seemed like a mighty beacon.

He stood up again. In spite of the deep swell outside the bay, the distance the men had pulled their great oars and all the other nagging delays, they were arriving at the prescribed moment.