See I try that sort of thing, like asking Gemini about a science fiction book I read in 5th grade that (IIRC) involved people living underground near/under a volcano, and food in pill form, and it immediately hallucinates a non-existent book by John Christopher named "The City Under the Volcano"
Gemini suggested the same at one point, but it would be a stretch since I read the book in question at least 7 years before City of Ember was published.