MMA MAKUTSI looked thoughtful when she returned to the Austin in its shady parking place. The uncle had dropped off to sleep, and was dribbling slightly at the side of his mouth. She touched him gently on the sleeve and he awoke with a start.

“Ah! You are safe! I am glad that you are back.”

“We can go now,” said Mma Makutsi. “I have found out everything I needed to know.”

They drove directly back to the No. 1 Ladies’ Detective Agency. Mma Ramotswe was out, and so Mma Makutsi paid her uncle with one of the fifty pula notes and sat down at her desk to type her report.

“The client’s fears are confirmed,” she wrote. “His wife has been seeing the same man for many years. He is the husband of a rich woman, who is also a Catholic. The rich woman does not know about this. The boy is the son of this man, and not the son of the client. I am not sure what to do, but I think that we have the following choices:

(a) We tell the client everything that we have found out. That is what he has asked us to do. If we do not tell him this, then perhaps we would be misleading him. By taking on this case, have we not promised to tell him everything? If that is so, then we must do so, because we must keep our promises. If we do not keep our promises, then there will be no difference between Botswana and a certain other country in Africa which I do not want to name here but which I know you know.

(b) We tell the client that there is another man, but we do not know who it is. This is strictly true, because I did not find out the name of the man, although I know which house he lives in. I do not like to lie, as I am a lady who believes in God. But God sometimes expects us to think about what the results will be of telling somebody something. If we tell the client that that boy is not his son, he will be very sad. It will be like losing a son. Will that make him happier? Would God want him to be unhappy? And if we tell the client this, and there is a big row, then the father may not be able to pay the school fees, as he is doing at present. The rich woman may stop him from doing that and then the boy will suffer. He will have to leave that school.

For these reasons, I do not know what to do.”