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

It has never occurred to Precious Ramotswe that there might be disadvantages to being the best-known lady detective in Botswana.

But when she receives a threatening anonymous letter, she is compelled to reconsider her previously unconquerable belief in a kind world and good neighbours.

While she ponders the identity of the letter-writer, Mma Ramotswe has a further set of problems to solve, both professional and personal.

There is an adopted child's poignant search for her true family and Mr J.L.B.