1 Ladies' Detective Agency series of novels by Alexander McCall Smith, set in Gaborone, Botswana, and featuring the Motswana protagonist Precious Ramotswe.

Mma Ramotswe and Mma Makutsi are called to a safari lodge in Botswana's Okavango Delta to carry out a delicate mission on behalf of a former guest.

The Okavango makes Precious appreciate once again the beauty of her homeland: it is a paradise of teeming wildlife, majestic grasslands and sparkling water.

However, it is also home to rival safari operators, fearsome crocodiles and disgruntled hippopotamuses.

But Precious knows that with a little patience, just as the wide river will gently make its way round any obstacle, so will everything work out for the best in the end.