Alexandra Darcy Hebden-Dent – but she prefers Alex – is an ordinary teenage girl living an ordinary life. Until one day, everything changes.

One of Alex’s favourite people is her Grandad, but he is an ailing old man. When he sets her off on a secret treasure hunt around the ancient city of York, Alex suddenly finds herself in a murky world of ancient organisations, where a battle between predators and protectors is unfolding. She must unravel the secret code and decipher the clues before it’s too late!

But in a world of double-agents and power-hungry factions, even those people closest to her are not what they seem. Who can Alex trust? As she struggles to overcome her own challenges to fulfil the final goal of the quest, she unearths hidden family secrets. In the race to discover the most dangerous of secrets, who will be the victor? And, if Alex fails in her quest, will it be the end of it all?

Follow Alex on a thrilling adventure through hidden historical sites where murder and mayhem rule!