Richard Franklin narrates the exciting novelisation of a classic TV adventure featuring the Third Doctor, as played byJon Pertwee.
Eminent scientist Emil Keller has developed a revolutionary new process for the treatment of hardened criminals. His invention, the Keller Machine, is being heralded as a major scientific breakthrough. But Professor Keller is in truth the Master, and the Keller Machine is much more than a mere machine.
Soon the Doctor, Jo, the Brigadier and UNIT are involved in a bitter struggle with the Master, an alien mind parasite, and a diabolical scheme to plunge the world into a Third World War....
Richard Franklin, who played Captain Mike Yates in the BBC TV series, narrates Terrance Dicks' novelisation of a 1971 TV serial by Don Houghton.
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