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October, 1930. His Majesty's Airship, the R101, sets off on her maiden voyage to the farthest-flung reaches of the British Empire. But there's a storm coming. And there's something unspeakable, something with wings, crawling across the stern...
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Zagreus sits inside your head. Zagreus lives among the dead - Zagreus sees you in your bed And eats you when you're sleeping.
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The Web of Time is stretched to breaking. History is leaking like a sieve. In the Citadel of Gallifrey, the Time Lords fear the end of everything that is, everything that was... everything that will be.
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The Doctor and Charley step out of the TARDIS into an alien jungle, where they find themselves stalked and then ambushed. They have landed in the middle of a Dalek war, and this time the tactics used by both sides threaten the very nature of reality...