For fun I've asked Gemini Pro to answer open ended questions about obscure books like "Read this novel and tell me what the hell is this book, do a deep reading and analyze" and I've gotten insightful/ enjoyable answers but I've never asked it to make lists of spells or anything like that.
If you ask a model to discuss an obscure work it'll have no clue what it's about.
This is very different than asking about Harry Potter.