"Bloody hell, girl, don't you know that in magical warfare, defense wins the game? Come on, we'll do more good over here..." She followed him obediently as he took to an outer edge of the pit where the Inferi were coming from. "Mum! Severus! Circle!" He cut his hand and grimaced in pain, running the blood along her wand. "Ginny, stand over there, about 15 meters from me!"