The two witches exchanged a look before moving quickly back into the larger room through one of the smaller halls near where the professors table used to exist (until it was blown up that is).  The cause of the noise was obvious as a group of six entered the crumbled Hall.  Two Aurors led the group, with four people in muggle suits with side arms behind them.  Hermione followed McGonagall towards the middle of the room to meet them.