But first, Stella's mum is throwing a murder mystery party and - with her dad losing his job, her mum's recent diagnosis, and some very odd behaviour from her sister - now is not the time to tell everyone.
All Stella and George have to do is make it through the day without their break-up being discovered - though it will soon turn out that having secrets runs in the family...
1945. War has ended, but for sisters Flora and Isobel the struggles still continue. They’ve lost their father and had their home destroyed in a bombing raid, and now they must go to live with their aunt and her awful husband Mr Godfrey in their ancestral home, Splint Hall.
From the moment of their arrival it seems that this is a place shrouded in mysteries and secrets. Who are the strange men who arrive with packages at night? What is the source of the strange blue sparks coming from the ground? And why do the locals seem to hate their family so much? As the girls begin to unearth an ancient myth and family secret, the adventure of a lifetime begins.