She points Zelgadis back up the stairs -- the front door is still open -- and says, "The sofa, please. Don't worry about blood, I and my furnishings have seen worse. Come along, please, Mr. Holmes, I may need you." Black clothes and the scents of blood and seawater are all she bothers to recognize at the moment as they hurry upstairs.
Apologies also for Minerva's defaulting to "all of you are particularly advanced students". She can't help it (g).