Six stories by married authors Peter Dickinson and Robin McKinley, to varying degrees themed around the element of water. Overall I liked McKinley's better (no surprise there), but Dickinson's "Kraken" was quite good too, making up for the dullness of his "Sea Serpent". The last three stories were better than the first three.
The final story, "Pool in the Desert," is set tangentially in the world of McKinley's Damar novels. It and Dickinson's first story, "Mermaid Song," both felt as if they would have been better as longer novellas. They also had in common that the role of water was not particularly essential to the story.