The Mermaid Summer

'There is no such thing as a mermaid!' So said the fisherman, Eric Anderson. But the mermaid was there, all the same, in the wild sea around the great pinnacles of rock called 'The Drongs'. She took a terrible revenge on Eric for scorning her so; and it was an even worse revenge she threatened when she found she could not get her own way with Eric's grandchildren, Jon and Anna...