"You manipulated me into agreeing after Lily died," Severus replied, abruptly standing up from his seat. He was in Albus’ office immediately after the attack on Harry. His statement was false, and he was just trying to get a rise out of Albus. To provoke him into revealing his hand. "Plus, I owe a blood debt to the boy’s father after his godfather tried to murder me. Now, I have the amazing duty to educate the offsprings of my assaulters, Potter and Black."