The TARDIS lands within a forbidding castle in a period of religious upheaval. The old god continues to be overthrown, and everything heretics should be slaughtered. Obviously it isn’t the sort of issue which would happen there each day – simply every couple of years approximately. And when the physician and Frobisher are hailed as messengers from heaven, they swiftly become vital to opposing factions in their struggle for power. But will they be simply the acolytes of the brand new purchase – or will they be made gods themselves? An evil destructive force keeps growing deep inside the crypt. As well as the set soon discover out that they will be lucky to escape their brand-new immortality with their lives.