Percy Bysshe Shelley, the author’s husband, actually wrote the preface. Mary Shelley signed it. Which is so NOT plagiarism.
It was rainy and kind of creepy the summer Shelley and her husband were vacationing in the Swiss Alps, so they told German ghost stories to pass the time.
They decided to have a ghost-story contest, and this novel began then.
There’s some name dropping of Dr. Darwin. Not the famous one, but his grandpa, who was a less noteworthy science geek.