I appreciate you being upfront about needing to catch up for book club, but I have to be honest with you: I don't have reliable information about a book called *Nineteen Quiet Rooms* by Ottilie Marsh. It may be a very niche or obscure title that isn't well-represented in what I was trained on.

I'd rather tell you I don't know than risk making up a twist and having you go to book club with the wrong information.

**Here's what I'd suggest:**

- **Reddit** – Try r/books or r/tipofmytongue (or a genre-specific subreddit) for a quick summary.
- **Goodreads** – Look for the book's discussion threads; people often talk about the ending there (spoiler-tagged, hopefully).
- **Literary blogs or reviews** – A site like LitHub, Locus, or a Goodreads review might recap it.

**Alternatively:** You could be honest with your book club — say you didn't quite finish — and you might be surprised how many others feel the same way! Sometimes those end up being the most fun discussions.

Good luck tomorrow!