"A delightfully unexpected afternoon."

Well it won't take up much of your afternoon and there's very little that's unexpected here.

For this is Black Orchid - a ripping yarn of bronchial brothers, lippy bookworms, smutty absentees and a child bride who's passed around like a gold ball at a Telosian rugby match.

The Doctor plays the clown, Tegan cuts a rug, Nyssa finds her double and Adric eats double his body weight in finger food.

But who is the tweed-trousered killer who's friends with an Amazonian Indian?

Could he possibly have any connection with Charles "not one of the Worcester Woosters" Cranleigh whose brother disappeared on an Amazonian expedition?

And who is the piratical prat with the badge for mathematical excellence?

Listen to find out...