“Stay on this side of the yellow line please, Kelly dear?” Sheila Blackstone said for the third time as Kelly/Oliva strayed from our little group, acting very much as if she did not want to be with us. It was the Wednesday of half-term week, in early May, and Caroline had succeeded in getting Professor Hoyte-Hughes to let her take Kelly to London for the day, to see a matinee performance of Swan Lake at the Royal Opera House. Ballet was not her scene any more than it was mine, but her apparent reluctance had made the Professor more inclined to allow it than not. “Felicity…will you hold her hand please, darling…we don’t want to lose her even before we get on the train?”