Mma Makutsi was annoyed with the apprentice. It was not right to make remarks like that in the presence of one who would be taking such a great personal risk for a good cause. “You must not talk like that,” she said severely. “This is not a joke for you to laugh at. This is a brave thing that Mr J.L.B. Matekoni is doing.”

“Oh it’s brave all right,” said the apprentice. “It is surely a brave thing, Mma. Look what happened to that poor Botswana Defence Force man…”

“What happened to him?” asked Mr J.L.B. Matekoni.

Mma Makutsi glowered at the apprentice. “Oh that has nothing to do with you, Mr J.L.B. Matekoni,” she said quickly. “That is another thing. We do not need to talk about that thing.”

Mr J.L.B. Matekoni looked doubtful. “But he said that something happened to a Botswana Defence Force man. What is that thing?”

“It is not an important thing,” said Mma Makutsi. “Sometimes the Botswana Defence Force makes silly mistakes. It is only human after all.”

“How do you know it was the Defence Force’s mistake?” interjected the apprentice. “How do you know that it wasn’t that man’s fault?”

“What man?” asked Mr. J.L.B. Matekoni.

“I do not know his name,” said Mma Makutsi. “And anyway, I am tired of talking about these things. I want to get some work done before Mma Ramotswe comes in. There is a letter here which we shall have to reply to. There is a lot to do.”

The apprentice smiled. “All right,” he said. “I am also busy, Mma. You are not the only one.” He gave a small jump, which could have been the beginnings of one of his dances, but which also could have been just a small jump. Then he left the office.

Mma Makutsi returned to her desk in a businesslike fashion. “I have drawn up the accounts for last month,” she said. “It was a much better month.”

“Good,” said Mr J.L.B. Matekoni. “Now about this Defence Force man…”

He did not finish, as Mma Makutsi interrupted him with a screech. “Oh,” she cried, “I have forgotten something. Oh, I am very stupid. Sorry, Mr J.L.B. Matekoni, I have forgotten to enter those receipts over there. I am going to have to check everything.”

Mr J.L.B. Matekoni shrugged. There was something which she did not want him to be told, but he thought that he knew exactly what it was. It was about a parachute that had not opened.

MMA RAMOTSWE swept up to the premises of Tlokweng Road Speedy Motors, bringing her tiny white van to a halt under the acacia tree. She had been thinking as she drove in, not of work, but of the children, who were proving such surprising people to live with. Children were never simple-she knew that-but she had always assumed that brothers and sisters had at least something in common in their tastes and behaviour. Yet here were these two orphans, who were children of the same mother and same father (or so Mma Potokwane had told her) and yet who were so thoroughly different. Motholeli was interested in cars and trucks, and liked nothing better than to watch Mr J.L.B. Matekoni with his spanners and wrenches and all the other mysterious tools of his calling. She was adamant that she would be a mechanic, in spite of her wheelchair and in spite of the fact that her arms were not as strong as the arms of other girls of her age. The illness which had deprived her of the use of her legs had touched at other parts of her body too, weakening the muscles and sometimes constricting her chest and lungs. She never complained, of course, as it was not in her nature to do so, but Mma Ramotswe could tell when a momentary shadow of discomfort passed over her face, and her heart went out to the brave, uncomplaining girl whom Mr J.L.B. Matekoni, almost by accident, had brought into her life. Puso, the boy, whom Motholeli had rescued from burial with their mother, scraping the hot sand from his face and breathing air into his struggling lungs, shared none of his sister’s interest in machinery. He was indifferent to cars, except as a means of getting around, and he was happiest in his own company, playing in the patch of scrub bush behind Mma Ramotswe’s house in Zebra Drive, throwing stones at lizards or tricking those minute creatures known as ant lions into showing themselves. These insects, small as ticks but quicker and more energetic, created little conical wells in the sand, snares for any ants that might wander that way. Once on the edge of the trap, the ant would inevitably trigger a miniature landslide, tumbling down the sides of it. The ant lion, hidden under grains of sand at the bottom, would burrow out and seize its prey, dragging it back underground to provide a tasty meal. If you were a boy, and so minded, you could tickle the edge of the trap with a blade of grass and create a false alarm to bring the ant lion out of its lair. Then you could flip it out with a twig and witness its confusion. That was an entertaining pastime for a boy, and Puso liked to do this for hours on end.

Mma Ramotswe had imagined that he would play with other boys, but he seemed to be quite happy on his own. She had invited a friend to send her sons over, and these boys had arrived, but Puso had simply stared at them and said nothing.

“You should talk to these boys,” Mma Ramotswe admonished him. “They are your guests, and you should talk to them.”

He had mumbled something, and they had gone off into the garden together, but when she had looked out of the window a few minutes later, Mma Ramotswe had seen the two visiting boys entertaining themselves by climbing a tree while Puso busied himself with a nest of white ants which he had found underneath a mopipi tree.

“Leave him to do what he wants to do,” Mr J.LB. Matekoni had advised her. “Remember where he comes from. Remember his people.”

Mma Ramotswe knew exactly what he meant. These children, although not pure-bred Masarwa, had at least some of that blood in their veins. It was easy to forget that, because they did not look like bushmen, and yet here was the boy taking this strange, almost brooding interest in the bush and in creatures that most other people would not ever notice. That, she imagined, was because he had been given the eyes to see these things; as we are given the eyes of those who have gone before us, and can see the world in the way in which they saw it. In her case, she knew that she had her father’s eye for cattle, and could tell their quality in an instant, at first glance. That was something she just knew-she just knew it. Perhaps Mr J.L.B. Matekoni could do the same with cars; one glance, and he would know.

She got out of the tiny white van and walked round the side of the building to the door that led directly into the No. 1 Ladies’ Detective Agency. She could tell that they were busy in the garage, and she did not want to disturb them. In an hour or so it would be time for tea-break, and she could chat to Mr J.L.B. Matekoni then. In the meantime there was a letter to sign-Mma Makutsi had started to type it yesterday-and there might be new mail to go through. And sooner or later she would have to begin the investigation of Mma Holonga’s list of suitors. She had no idea how she was going to tackle that, but Mma Makutsi might be able to come up with a suggestion. Mma Makutsi had a good mind-as her ninety-seven per cent at the Botswana Secretarial College had demonstrated to the world-but she was inclined to unrealistic schemes. Sometimes these worked, but on other occasions Mma Ramotswe had been obliged to pour cold water on over-ambitious ideas.

She entered the office to find Mma Makutsi polishing her large spectacles, staring up at the ceiling as she did so. This was always a sign that she was thinking, and Mma Ramotswe wondered what she was thinking about. Perhaps the morning post, which Mma Makutsi now picked up from the post office on her way into work, had contained an interesting letter, possibly from a new client. Or perhaps it had brought one of those anonymous letters which people inexplicably sent them; letters of denunciation which the senders thought that they would be interested to receive, but which were no business of theirs. Such letters were usually mundane, revealing nothing but human pettiness and jealousy. But sometimes they contained a snippet of information which was genuinely interesting, or gave an insight into the strange corners of people’s lives. Mma Makutsi could be thinking about one of these, thought Mma Ramotswe, or she could just be staring at the ceiling because there was nothing else to do. Sometimes, when people stared, there was nothing else in their minds, and all they were doing was thinking of the ceiling, or of the trees, or of the sky, or of any of the things that it was so satisfying just to stare at.