The house of the Duchess, filled with smoke and black peppers.
The ugly Duchess cannibal is about to burst out from the fire place.
Alice got killed by the Duchess in Wholly Morel Ground. Note the pun on Moral. Morel is a type of mushroom. In the novel, the Dunchess is fond of saying “the moral of that is …”. See: Alice's Adventures in Wonderland (Chapter 9).