Little Michael was eight years old, and he had never met a sea-fairy, for he lived in a great town. Then at last his father and mother and he went off for a whole month to the seaside. There were sands there, very hard and yellow and good to make castles with; and there were lonely caves with dripping walls; and there were heaps of slimy, green seaweed, and shells, and rocks for climbing on. Best of all, there were plenty of fairies. Michael made friends with all the fairies of the sea and shore; but his greatest and best friend was a Mermaid who lived in a cave.
The roof of the cave was wet and green, and its floor was pebbly, with here and there a rock. Every day Michael came and sat on one of the rocks and listened to the Mermaid's stories, and to the soft, lapping sound of the little waves. The Mermaid told him such stories as he had never heard before, for she had not always been in that cave, but had swum in deep seas and lived on many shores. She told Michael of places where the sea was warm and green, and the rocks were made of coral, and palm-trees shaded the mermaids when they played upon the sands. She told him too of bitter seas that were made of ice, so that no mermaid could swim in them; and of towering icebergs shining in the sun; and of white mist-fairies, who turned the hair of mermaids into a shower of icicles. Then she told him of sailors who had been her friends, and how some of them were sailing far away, and some of them were drowned, and how all of them were good playmates.
While Michael listened to these stories his eyes were very round and wide open, and often his mouth was open too. He had never enjoyed anything so much before, and he thought it would be dreadful when the day came for him to leave the dancing sea-fairies and the Mermaid's cave, and go back to the big town where he hardly ever saw any fairies at all. One day he said—
"Mermaid dear, I want something to take back to town with me; something to make me remember the sea-fairies and you, and to make me think of the sea for ever and ever."
"Tell me what you want," said the Mermaid, smiling; "and if I can get it for you, I will."
"Well," said Michael, "it's rather a big thing I was thinking of. Perhaps it's too big to ask for. But you see the Bay is full of white-horses to-day. Do you think you could possibly catch one for me? I think if I could take home a white-horse from the Bay, I should remember the sea for ever and ever."
The Mermaid slipped off her rock and dived into the deep water. A few moments afterwards Michael saw her far out in the Bay, with her hair floating in the wind, and her tail glittering under the waves. There were a great many wind-fairies playing about that morning, and that was the reason that the Bay was full of white-horses, for when the wind-fairies are playing on the sea they always ride white-horses.
Michael climbed a high rock and stood on the very top of it, and watched the Mermaid. It was grand to see her gliding through the water, chasing first one white-horse and then another, diving and darting and dodging, and enjoying herself all the time.
"Quick, quick!" cried Michael. "You nearly had him that time!"
But she was not quick enough, for the white-horse was far out of reach even as she threw out her white arms to catch his mane.