Summary: Professor Yana is not what he seems to be.
Kindly old forgetful Professor Yana carries the hopes of all still living at the end of time. One by one the stars are winking out, dying suns around already long-dead worlds, but with the people’s help he’s built this rocket from his own designs, promising to transport everyone to Utopia.
Then they come, the time traveller calling himself the Doctor, and his two travelling companions. Good people. Yana likes them, but they’re the bringers of everyone’s doom.
The Professor’s watch has never worked, but now he opens it, releasing his true self, the Master, like a genie from a bottle.