A rollercoaster ride of medieval action, adventure and magic Roger Sotil, Master of Astronomy and his sceptical servant, Jake Savage, are called upon to rid a town of its demons. Investigating an infestation of demons in the town of St Brett's is the last thing that Jake Savage wants to do this summer. But for his master, the controversial Oxford scholar Roger Sotil, it is a chance to prove that demons can be conjured and avoid charges of heresy. In St Brett's, Roger sees demons possessing the townspeople. Jake thinks they are just acting very strangely. The people are scared and want answers fast. A beautiful woman, Isabel Haukwake, is accused of witchcraft. Roger feels sure that she isn't guilty. Jake knows she isn't. He was once engaged to marry her, until his father took her from him. "In Hell has its Demons" a plot unfolds to use demons to take the ultimate prize of all - the crown of Edward III, King of England.