Taking a deep breath, the prefect cupped a hand to his mouth and shouted, ‘Can we bail it out?’

The captain shook his head.

‘So what now?’

‘We have to run before the storm! It’s our only hope of staying afloat. Then find somewhere safe to land!’

The prefect gave an exaggerated nod to show he had understood. Very well then. They would have to find somewhere to beach the ship. Some thirty or forty miles down the coast the cliffs gave way to shingled beaches. Providing the surf was not too wild, beaching could be attempted. That might cause serious damage to the trireme but better that than the certainty of losing the ship and all the crew and passengers. With that thought, the prefect’s mind went to the woman and her young children sheltering below his feet. They had been trusted to his care and he must do everything in his power to save them.

‘Give the order, Captain! I’m going below.’

‘Aye, sir!’ The captain saluted and turned back towards the waist of the trireme, where the sailors huddled by the base of the mast. The prefect watched for a moment as the captain bellowed his orders and pointed to the furled sail on the spar at the top of the mast. No one moved. The captain shouted the order again, then viciously kicked the nearest sailor. The man cowered back, only to be kicked again. He leaped for the rigging and began to make his way aloft. The others followed, clinging to the stays as they struggled up the swaying ratlines and transferred themselves to the spar. Bare frozen feet pushed down onto the toe-line as they inched out above the deck. Only when every man was in position could they undo the ties and release the sail as far as the first reefing point. That much sail would be all that was necessary to give the vessel steerage way as it ran before the storm. Each burst of lightning briefly silhouetted the mast, spar and men in harsh black against a dazzling white sky. The prefect noticed that lightning made the rain seem to stop in mid-air for an instant. Despite the terror that gripped his heart, he felt a thrill of excitement at this awesome display of Neptune’s powers.

At last all the men were in position. Bracing his solid legs on the deck, the captain cupped both hands and tipped his face up towards the mast.

‘Unfurl!’