In The Kite Runner, Amir and Hassan grow up together in Afghanistan like brothers, although they couldn't be more different. Amir is the son of a wealthy businessman, a Sunni Muslim, a Pashtun, and he's educated and reads voraciously. Hassan's father is a servant to Amir's father, and Hassan is a Sh'ia Muslim, a Hazara, he's illiterate, and he has a harelip. But neither boy has a mother and they spend their boyhoods roaming the streets of Kabul together. Amir, though, continually uses his superior position to taunt or abuse Hassan, and one day hides in fear as Hassan is beaten mercilessly by bullies. The Soviet invasion of Aghanistan sends Amir's family to the United States, but he returns there as an adult during the Taliban rule to atone for his sins to Hassan.