On a beautiful spring day, Julia Harburn sat on a seat in Kensington Gardens enjoying the sunshine. She was wearing a white frock and a large straw hat with a sapphire-blue ribbon which exactly matched her eyes. As it turned out, this was a strange coincidence, for the blue sapphire was to have a far-reaching influence upon her life. So far, her life had been somewhat dull and circumscribed; but quite suddenly her horizons were enlarged. She began to make new friends - and enemies - and she began to discover new strength and purpose in her own nature. This development of her character led her into strange adventures...