According to the introduction, Mary Shelley wanted to write what type of
ghost story?

Frankenstein is one of the terror novels wrote by the writers in a sort of bet, Lord Byron challenged them all to write a ghost story, and the story came to Mary Shelley in a dream, she wanted to conect with the fears of her society, fears of technology and changes, and she wanted readers to look around, frightened.

im gonna take a guess and say gas vans and chambers

gothic and dark natured