Who were the young people whose voices Robin could hear, coming from a locked room in her aunt's ramshackle mansion? Why did the old crumbling ball she found in the latticework of the summerhouse stir such a rush of memories? And what possible explanation could there be for the astonishing photograph she saw in the library? Or for the letter that had been written and forgotten, and written again, a thousand times?
The beginning of the answers to Robin's questions lies in an ornate moonlit fountain at the bottom of the garden..
