Beautiful, resourceful, treacherous, vulnerable. She was a woman full of contradictions and he would never stop loving her.

As a young girl Diana is irrepressible, untameable and, to the orphaned John, endlessly fascinating. Only daughter of a wealthy businessman, she is drawn both to a rigorous outdoor life in the west country with her horses and the glittering London society that will be her destiny.

They spend a magical unconventional childhood together but Diana's ambition, her passion for life that makes her so desirable, pulls her away from all that makes her happy. The fierce friendship that grew inevitably to love, develops as inevitably to conflict and a betrayal that will mark them both - until the trials of war offers them redemption.