Hazel shot to her feet. He’s my brother. He brought me back from the Underworld, and you don’t want to help him?” - page Mark of Athena. Nico and Hazel have one of the cutest brother-sister relationship!
“I feel I owe you another explanation, Harry,” said Dumbledore hesitantly. “You may, perhaps, have wondered why I never chose you as a prefect? I must confess… that I rather thought… you had enough responsibility to be going on with.” Harry looked up.