The Time Lords have a mission for the Doctor Together with Sarah & Harry he finds himself stranded on the war-torn planet Skaro where the conflict between the Thals & the Kaleds has been raging for a thousand years Chemical & biological weapons have started a cycle of mutation among the planet's inhabitants that cannot be stopped But Kaled scientist Davros has perfected a life support system & travel machine for the creature he knows his race will ultimately evolve into
- the Dalek The Doctor must stop the creation of the Daleks or perhaps affect their development so they evolve into less aggressive creatures But with Davros's plans to destroy the Thals & to wipe out any dissenters among his own ranks in progress is the Doctor already too late? This novel is based on a Doctor Who story which was originally broadcast from 8 March-12 April 1975 Featuring the Fourth Doctor as played by Tom Baker with his companions Sarah Jane Smith & Harry Sullivan