And a race of aliens hate him so much they're prepared to invade Earth to kill him.
Doctor How thinks his greedy, womanising cousin Why can help — but can he be trusted?
As a killer robot blasts its way across the planet and a death ray is fired at London, Doctor How sends Kevin back in time on a desperate mission to save the Earth. But when he's paired up with one of the Doctor's previous assistants the sparks begin to fly — for all the wrong reasons...
Kevin's made a lot of dangerous enemies in the present, and things looks bleak back home — does he have a better future in the past?
THIS IS BOOK 3 OF THE DOCTOR HOW SERIES.
This book series is not affiliated with or endorsed by the BBC. It is not a Doctor Who story.