Adverb

Eerily –  so mysterious, strange, or unexpected as to send a chill up the spine

sources : https://www.merriam-webster.com/dictionary/eerily

I have encountered this word while reading “Quicksand” by Nella Larsen. You can locate this word on page one, at the bottom of the page. When the narrator said “So large that the spot where Helga sat was a small oasis in a dessert of darkness. And Eerily quiet.” The word was interesting because it was used in such a short sentences to describe what the atmosphere was like when reading it. After understanding what this word means I think that the narrator was describing where Helga was sitting, and what it felted like, as the “shadowy”, and a large spot of lights, making the atmosphere very mysterious, and gloomy. Its atmosphere was very strange and frightening, also another word that would describe it would be emptiness.