Philip Ogilvie and his pretty wife were quarrelling, as their custom was, in the drawing-room of the great house in Belgrave Square, but the Angel in the nursery upstairs knew nothing at all about that. She was eight years old, and was, at that critical moment when her father and mother were having words which might embitter all their lives, and perhaps sever them for ever, unconsciously and happily decorating herself before the nursery looking-glass.