The latest strand in the Dark Gallifrey saga fixes on the Master, specifically the decaying version played by Geoffrey Beevers.

Script editor John Dorney says: “The Decayed Master doesn’t have his own series, like other Masters we’ve dealt with in Dark Gallifrey. So this was an exciting chance to see what he’s like when the Doctor isn’t around. And what he’s like is ruthless and pretty damn nasty!”

“There’s always an air of desperation about this Master – the determination to extend his life as much as possible. But this storyline sees him embarking on a quite personal quest, with no regards for consequences. It’s a rich, dark, complex web, and I think listeners are going to love it.”

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