The backstairs (stairs at the rear of a building).
clandestine, secret or furtive
A lair or feeding place of animals.
A place at which one is regularly found; a habitation or hangout.
A ghost.
To stalk; to follow.
To accustom; habituate; make accustomed to.
To inhabit or to visit frequently (most often used in reference to ghosts).
To make uneasy, restless.
To practise; to devote oneself to.
To persist in staying or visiting.