the other Consul to install her as the next Keeper. When the Keeper dies, Kassia takes the throne, but as the pivotal moment of the ceremony is completed, she disappears, leaving the statue of Melkur in her place, now connected to the Source. Having escaped their confinement, the Doctor and his allies seek to cause a servo-shutdown of the Source to destabilise it and disconnect Melkur from using it. As Adric and Nyssa prepare to activate it, the Doctor is drawn into the statue of Melkur, finding it to be a TARDIS. Inside, he meets his old enemy, a horribly disfigured Master. The Master reveals he is on his last regeneration, and seeks to use the Source to give him a new set of regenerations, and then attempts to subdue the Doctor. However, at the same time, Adric and Nyssa initiate the servo-shutdown, disconnecting the Source from the Master and causing his TARDIS to malfunction. The Doctor escapes the Master's TARDIS, and when Melkur disappears, another Consul, Luvic, takes the throne to restabilise the Source before it completely dies. After assuring all is well, the Doctor and Adric depart in his TARDIS. Later, Tremas discovers an alien longcase clock, and is transfixed to it when the Master emerges from it and merges his body with that of Tremas. The newly reformed Master laughs as he re-enters the clock—his TARDIS—and dematerialises, leaving Nyssa wondering where her father has gone off to. Production This story came about when the script editor suggested to Johnny Byrne that he use the subjects of millennialism and the effects of a long-serving head of state dying. The producer wanted to include a character that would give a sense of familiarity when Tom Baker, who had been the Doctor for several years, left and the new lead actor took over. To this end the Master replaced the villain in Byrne's draft. The Melkur statue's design was based on a 1913 statue by Umberto Boccioni. The decaying Master's robe was the same costume that had been used in The Deadly Assassin. Cast notes Geoffrey Beevers is credited as the Melkur to conceal the plot twist of the Master's return. The Melkur statue was played by Graham Cole. Denis Carey, who plays the Keeper, also played Professor Chronotis in the uncompleted Fourth Doctor serial Shada, and the Old Man in the Sixth Doctor story Timelash (1985). Margot Van der