For the image of Ronald Weasley was now before them, enlarged and prominent as the magical camera tightened focus on him. What that meant, that he could inspire such intense terror in Hermione just by being there in this ephemeral form, stirred something so corrosively ugly in Harry's heart that he felt tainted by it a moment. Harry held his connection to Hermione steady, channelled fresh waves of fear from her straight into himself, feeding that constant battle inside him. It gave his anger focus, stopped it exploding out and breaking things.