Perturbed by her boss's silence over the mysterious properties of the lichen, biochemist Diana Brackley secretly begins her own investigation

The scientific world, government, media and the beauty salon collide in John Wyndham's 1960 sci-fi novel.

Read by Joanna Tope.

Abridged by Scott Stainton Miller.

Producer: Eilidh McCreadie

Made for BBC Radio 7 by BBC Scotland and first broadcast in 2007. Show less