The madness of beautiful Mavis Offord, driven beyond fear into insanity, was only the beginning...

Out of the dim and ancient past, something hideous had been loosed upon the English countryside. Through the dark curtain between bustling modern London and the old oak-groves where Druid priests created dark magic, there came a desperate anguished cry for help.

Only The Guardians could hear and answer it. Their battleground - the shadowy frontier where the light of knowledge fades into the dark depths of the supernatural. Across eons to the age when Boadicia was Queen - in two dimensions of time, in flesh and spirit, the fight must rage!