Pk is sent to boarding school because his mother isn’t able to care for well any more, and he is bullied by older boys there, specifically by Jaapie Botha.
You're the Rainmaker, PK!
After his mother dies, Pk gets help from some kind of shaman or witch doctor who causes Pk to believe he his facing an elephant, his greatest fear because an elephant killed his father, and Pk faces that fear and gains courage. He then receives his pet chicken to help him.
Pk’s grandfather returns to South Africa, so Pk is able to go live with him, and meets Doc, who teaches Pk things like piano. Because of WWII,Doc, who is a German, is sent to prison. The afrikaner officers treat him very well because, unlike the English, support the war, and see Doc as the perfect image of what a German should be, so he gets well treated and even has a piano in his cell. Pk continues to visit and learn from Doc after school.
Doc has a Native African prisoner named Geel Piet teach Pk how to box so he could defend himself, and Pk learned quickly and got really good as he got older. Geel Piet gives Pk the image of the rainmaker because Pk was uniting the tribes, but Pk doesn’t want to give people false hope.
WHAT!?! No, I can't...
Eventually Doc leaves to return home in Germany when he is released, and Pk continues to go to private school, as well as box. At one of his boxing matches, he sees an the daughter of an afrikaner professor, and is smitten. They end up having a Romeo and Juliet like romance.
A Native African boxer named Gideon Duma convinces Pk to have a boxing match with in front of many Native African tribes, hoping to beat him and prove that Pk wasn’t the rainmaker, and that the tribes could do things themselves instead of relying on someone else.