Doctor Who: Kinda

Nothing could disturb the serene peace of the planet Deva-Loka - or could it? An expeditionary force from Earth is dangerously out of control—and 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 the closest to the real danger that threatens not only her sanity but the existence of the whole planet...