When Controller Borasus receives a strange letter from Earth he is both curious and alarmed. Someone has activated an ancient machine and is using it for most trivial purposes. Surely no one would dare to tamper with Reigner seals in this way? Yet the effects of such interference resonate throughout the universe, so he decides to go to Hexwood Farm to investigate… On Hexwood Estate, Ann watches the mysterious comings and goings with interest. She knows something deadly is going on – or is Hexwood simply altering her too?