Question

gothic novel: the strange case of dr. jekyll and mr. hyde
the strange case of dr. jekyll and mr. hyde
by robert louis stevenson
chapter 9: dr. lanyons narrative
on the ninth of january, now four days ago, i received by the evening delivery a registered envelope, addressed in the hand of my colleague and old school companion, henry jekyll. i was a good deal surprised by this; for we were by no means in the habit of correspondence; i had seen the man, dined with him, indeed, the night before; and i could imagine nothing in our intercourse that should justify formality of registration. the contents increased my wonder, for this is how the letter ran:
\10th december, 18—
dear lanyon,—you are one of my oldest friends, and although we may have differed at times on scientific questions, i cannot remember, at least on my side, any break in our affection. there was never a day when, if you had said to me, jekyll, my life, my honour, my reason,
your arrival with a locksmith. the door of my cabinet is then to be forced; and you are to go in alone, to open the glazed press (letter e) on the left hand, breaking the lock if it be shut, and to draw out, with all its contents as they stand, the fourth drawer from the top or (which is the same thing) the third from the bottom.
the excerpt contains an example of a gothic setting because it has
a mysterious old house at night.
a peculiar locksmith arriving late.
a strange carriage driving at night.

Explanation:

Gothic settings often include elements of mystery and the unknown. The mention of forcing open a cabinet in a specific way, with precise instructions about drawers in a cabinet, creates an air of mystery. A mysterious old - house at night is a classic Gothic setting element, evoking a sense of unease and the unknown. While a locksmith arriving late and a strange carriage driving at night can be somewhat eerie, they are not as central to the concept of a Gothic setting as a mysterious old house.

Answer:

a mysterious old house at night