Gordon Reid
Grace is a religious woman who lives in an old house kept dark because her two children, Anne and Nicholas, have a rare sensitivity to light. When the family begins to suspect the house is haunted, Grace fights to protect her children at any cost in the face of strange events and disturbing visions.
'Five days of darkness then. Unless you get it together we will have five days of darkness. And on the sixth day you will say, let there be light, and no doubt it'll an be such an effort that on the seventh day you'll have to rest!'. TV play by Sean McCarthy.
The Third Doctor and Sarah arrive in 1970s London to find it has been evacuated because dinosaurs have appeared mysteriously. It turns out the dinosaurs are being brought to London via a time machine to further a plan to revert London to a pre-technological level.
