Description
 
Bo Munro, a divorcee from a small English town on the Essex blackwater, rediscovers an ancient relic, given to her by her grandfather on his death bed.  

From the moment she finds the relic - which forms part of a key - Bo Munro’s world is turned upside down and she is thrown into the hidden world of ancient societies, government conspiracies, sacrifices, and demonic realms of which she has no understanding. 

In desperation, and with powerful organisations after them, she and her dad begin a race against time to stop them from using the key to permanently open a doorway between the earthly plane and the underworld plagued with bloodthirsty demons…