Conversation so far:
When did Mary Shelley write Frankenstein?
Mary Shelley remembered in 1831.
What did she have to do with Lake Geneva?
close to Lake Geneva at the village of Cologny; Percy Shelley rented a smaller building called Maison Chapuis.
what did they do while they were there?
They spent their time writing, boating on the lake, and talking late into the night.
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Question: What did they write while they were there?
Self-contained rewrite: What did Mary and Percy Shelley write while they were at Maison Chapuis?