PREVIEW BY BENJAMIN COOK
Bill (Pearl Mackie), the Twelfth Doctor (Peter Capaldi) and the First Doctor (David Bradley) discover something incredible at the South Pole in Twice Upon a Time.
Never ask a writer where they get their ideas from. They don’t like it, and it usually prompts a flippant reply like: “From a little ideas shop in Bognor Regis.” “From the Argos catalogue.” “I order mine online.” But just occasionally the answer is as surprising as it is true: “From last year’s New York Comic Con,” reveals Steven Moffat, Doctor Who’s departing showrunner. “That was absolutely the germ of the idea. That’s when it happened.