A excellent condition copy of this hard to find hardback, published by W H Allen in 1985, that is long out of print. Featuring the third Doctor (Jon Pertwee) in a bitter struggle with his deadliest enemy (The Master), an alien mind parasite, and a diabolical scheme (aren't they always?) to plunge the world into a Third World War... Written by prolific Doctor Who author Terrance Dicks. It is not an ex-library book.