Doctor Who Dinosaur Invasion by Malcolm Hulke

This text is a novelization of a Doctor Who story where London is evacuated following a sudden and terrifying outbreak of dinosaurs. The Doctor and his companion, Sarah Jane Smith, return to a deserted city where they discover a conspiracy involving high-ranking officials and a scientist named Professor Whitaker. These villains use a Timescoop to pull prehistoric creatures into the present as a distraction to facilitate their true plan, Operation Golden Age. Their goal is to reset human history by transporting a group of elite, "right-thinking" individuals back to a pristine, unpolluted era. Ultimately, the Doctor exposes the deceitful nature of their "spaceship" and thwarts the plot, leading to the disappearance of the antagonists into the past they sought to control.