Janet Fielding reads this novelisation of an intriguing adventure for the Fifth Doctor and friends.

On the serene planet Deva Loka, an expeditionary force from Earth is dangerously out of control. It's not only the peaceful race of the Kinda who are at risk.

A gentle stroll in the lush jungle leads the Doctor and Adric to an unexpected confrontation - and puts them at the mercy of a maniac.

But it is Tegan, lulled to sleep by mysterious wind-chimes, who comes closest to a danger than threatens not only her sanity but the existence of the whole planet.

Janet Fielding, who plays Tegan in the BBC TV series, reads Terrance Dicks's novelisation of the television adventure by Christopher Bailey.