And behold! a great storm shook the sea, as if the gods themselves were angry. Thunder and lightning rolled and flashed, and raindrops heavy as leaden balls fell in swift torrents. So fearful was the tempest that it threatened to overwhelm the ship, and the Captain was in despair.
In this dire extremity a knight on a magnificent black charger came riding over the waves.
‘Surrender him who threw the spear!’ he cried, and the sea stayed its turmoil to listen. ‘Do this, and I will save the ship. Else shall it perish, with all on board, and sea creatures shall gnaw your bones.’
The sailors were exceedingly afraid, but they would not betray their comrade. Seeing this, Antoine stepped forth of his own accord, for he would not let his shipmates suffer for his fault. Leaping from the deck, he landed upon the haunches of the charger, behind the knight, and that moment the sea became smooth as glass, and the strange steed disappeared with his two riders.
The ship made good way, and his shipmates never expected to see poor Antoine again, but to the amazement and joy of all, he rejoined the vessel a few days later as though it had stood by for him. The excitement of the men was great as they gathered round him to hear of his adventures.
And truly he had a marvellous story to relate. He had ridden, he told them, to a distant island, where in a castle of shimmering gold, on a bed of the softest eiderdown, he found a knight stretched in agony. It was he whom he had wounded, while in the form of a porpoise, and the spear he had thrown so thoughtlessly was still sticking in his side. He drew this out, with tears of shame, and then, with his guilty right hand, he cleansed and bathed the wound. When this was done, the knight fell into a deep sleep, and woke at dawn well as ever. Taking Antoine’s hand, he led him through many corridors lit with gems to a resplendent banquet hall, where the walls were encrusted with star-shaped sapphires, and the floor was of beaten gold. Many other knights were assembled here, and maidens so fair that Antoine sighed to think of them. When he had feasted on curious dishes of rich fruits, the same knight who had brought him thither took him back to the sea-shore, where the same black horse awaited their coming. Mounting as before, the charger sped like the wind over the sea until the ship hove in sight. When they came to within one hundred yards of the vessel, the black steed and his rider disappeared as mysteriously as they had come, and Antoine was left struggling in the water. However, he was an excellent swimmer, and soon reached the ship’s side, up which he easily clambered by the aid of a rope which fortunately happened to be trailing in the water.
This was the tale that Antoine told his shipmates, and in memory of the clemency of the porpoise-knight, the sailors vowed that never again would they injure a porpoise. Not only were they as good as their word, but the vow is kept to this day by their children’s children.”