Since the others can read this, I'll lay it out for you here.
The plan is for the majority of us to stake out around the circle, and for Anna to lead him down there. She'll have a way, it's Anna. She'll have backup. We'll be sight and scent shielded by spells used by Aurors, they're like hunters in my world. Once he's in there, Sean and I will activate it. And then we'll commence with taking care of the psycho bastard.
We just need to figure out who is going to be where. Mostly, who is going to be in the hallways, keeping out innocents. And most importantly, Chris.