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...
Zagreus sits inside your head. Zagreus lives among the dead - Zagreus sees you in your bed And eats you when you're sleeping.
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.
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...