Mellie nods at Josie, signalling the advance and tells Ron: "Get the other door, and make sure no one comes in." With no other way to turn, the creature dashes for the exit and is outside in no time. As Hugo slams the door behind it, the last thing he seems to see - it's only a flash - is two black shapes in the alley, standing nose to nose as if in greeting.
Inside, Mellie tells Josie: "Have a look in the pantry, love, see what damage it's done. And do clean up if it left us any presents."