YES! The climax of that book is one wild ride! I remember the first time I read it, I got this visceral rush at the moment when Harry realizes he had created the patronus that saved them. It's like JKR spent the entire book linking Harry to his past, and at that moment, he sheds that and steps forth victorious in his own right, armed with his father's strength yet entirely his own man. EEEE THE FEELS.