But there was something about the idea of Hermione in battle, killing for him, maybe defending him, that speeded Harry's heart to reckless abandon. He couldn't describe it, or why it made him grin so foolishly. And he wasn't ignorant to the way the idea aroused him, either. The very notion of Hermione opening up aggressively on someone to protect him ... well, there was just that something about it that excited him. Harry couldn't rightly explain it, wasn't sure how to cope with it.