"You saved my life." Hermione explained, carefully pulling back the drenched cotton. As soon as she saw the wounds, she began to pour the essence of dittany. The clear fluid pooled in the deep holes Nagini had left, they ran over his pale skin, washing away some of the blood before pooling in the next bite. "You saved Draco’s life. You warned me about him and what might happen if anybody found out. You knew about the attack on Hogwarts and prepared my potions in advance, enough to last me a year. And you gave me the recipe."