Rahim Kahn explains that after Amir and Baba left, he had watched over their house as conditions grew worse in Kabul and the forceful Taliban took over. He tracked down Hassan and his wife, Farzana, and convinced them to move back into Baba's old house. Soon, the young couple had a boy named Sohrab. Years later, after Rahim Kahn had left Kabul to go to Pakistan for medical treatment, he received word that Hassan and Farzana had been shot dead and their son had been sent to an orphanage. Rahim Kahn goes on to explain that Hassan was Amir's half brother and asks Amir to find Sohrab in Kabul and bring him back to Pakistan where a couple will take care of him. Amir agrees and travels to the orphanage Sohrab is supposed to be in in Afghanistan, where he is told that an official has taken him and that he can meet with the official the next day at the soccer stadium. After meeting the evidently cruel official, Amir recognizes something he says and realizes that the official is actually Assef, one of the neighborhood bullies who had abused Hassan years ago. When Assef beats Amir with a pair of brass knuckles to "settle unfinished business," Sohrab saves Amir by shooting Assef with his slingshot, just as his father Hassan had once done. After Amir recovers in the hospital, he discovers that there was never really a couple in Pakistan to take care of Sohrab, and he invites the boy to live with him. During the lengthy adoption process, Sohrab tries to kill himself. Even after the adoption works out and he comes.
to live with Amir and Soraya in California, he remains dismal and does not speak until the final scene; Amir takes Sohrab to a kite festival in a nearby park, similar to ones from his childhood. Amir buys Sohrab a beautiful kite, and they win a battle against another kite using what had been one of Hassan's favorite tricks.
The main theme of "The Kite Runner" is redemption. Beginning early on in the novel, Amir tries to redeem himself to Baba, mainly because his mother died in childbirth and Amir feels that his father blames him for her death.
