Nicholas Head

Scientist Doctor Who accidentally activates his new invention, the Tardis, a time machine disguised as a police telephone box. Who, his two granddaughters Barbara and Susan, and Barbara's boyfriend Ian are transported through time and space to the planet Skaro, where a peaceful race of Thals are under threat of nuclear attack from the planet's other inhabitants: the robotic mutant Daleks.

When his brother disappears, a man visits the remote country house where he was last seen. While the host seems outwardly friendly and his niece more demonstrably so, there's a feeling of menace in the air with the overhanging legend of Lavinia Morley, the Black Witch of Greymarsh.