Amir learns from Rahim Khan that Hassan protected a secret about Amir's past in Kabul. Rahim asks Amir to return to Kabul to address an unspecified request. Flashbacks reveal Hassan married Sanaubar and they had a son, Sohrab, but both Hassan and Sanaubar have since died. When Amir arrives in Kabul, he discovers Sohrab living in an orphanage and decides to find and rescue and care for him, seeking possible redemption for his past actions and relationship with his homeland.