Gilly Brown

A mad scientist wants the Doctor's head on a plate - literally! Sinister foes menace the Doctor from the moment he sets foot on the storm-lashed planet of Karn.

The Doctor is a prisoner of the Sisterhood of Karn, who intend to burn him alive at the stake. Sarah Jane hurries to the Doctor's rescue, but ends up paying the price for her efforts.

Sarah has been blinded and the Doctor asks the Sisterhood for help. Morbius, fearful that the Time Lords have tracked him down, tells Solon to install his brain in a new body.

Morbius, housed in a terrifying new body, lives and breathes once more and the Doctor is forced to challenge his foe to a deadly mental duel which only one of them will survive.