It eats life itself. That a journey of a thousand miles begins with but a single step. DOCTOR: And fruitcake. Come on. Only a Time Lord could do that. Man of the Fendahl. STAEL: The way to power is open!
Plan: A: The Doctor; Q: Who tries to prevent the re-existence of a Fendahl? A: Fendahl; Q: What is the name of the group entity that feeds on life itself? A: Time Lord mythology; Q: Where is the Fendahl thought to only exist? A: a witches' coven; Q: Who intervenes to prevent the re-existence of a Fendahl? A: power; Q: What do witches seek? Summary: The Doctor endeavors to prevent the re-existence of a Fendahl, a group entity that feeds on life itself and thought only to exist in Time Lord mythology, but a witches' coven, seeking power, intervenes.