Everything melted away in that instant. Harry felt vaguely calm while at the same time his heartbeat thundered in his ears. He wasn’t nervous anymore, and in fact felt himself getting more and more excited. Unbeknownst to himself, he was now giving the dragon a vicious smile of his own. Raising his wand, he shouted out "Accio Serpent Slayer!" while also rushing headfirst towards the Horntail.