the setting of this story is important. what details describing the doctors study suggest the supernatural

The mirror through which Dr. Heidegger's deceased patient's stare, magical book, skulls in the closet.

Explanation:

"Dr. Heidegger's Experiment" is a short story written by Nathaniel Hawthorne. The setting of the story is creepy and eerie study of Dr. Heidegger.

Hawthorne took much time and delight in describing the study of Dr. Heidegger. The study of Dr. Heidegger was accustomed to supernatural elements.

The supernatural elements were:

Mysterious mirror, through which, it was rumored that his dead patients stare at him. Portrait of a woman, with whom Heidegger wants to marry. This woman died on their wedding night. A large and black magical book. Skeletons in the closet.

These details that Hawthorne provides suggest that the setting was supernatural.