In a small Welsh mining village a man emerges from the disused colliery covered in a green fungus. Minutes later he is dead. UNIT, Jo Grant and Doctor Who in tow, arrive on the scene to investigate, but strangely reluctant to assist their inquiries is Dr. Stevens, director of the local refinery, Panorama Chemicals. Are they in time to destroy the mysterious power which threatens them all before the whole village, and even the world, is wiped out by a deadly swarm of green maggots? Katy Manning, who played Jo Grant in the original 1973 TV serial on which this book is based, reads Malcolm Hulke's complete and unabridged novelization, first published by Target Books in 1975.
Read by Katy Manning.