Maybe some of you actually know of good titles in this type. Girl in question is 12, but is more into stuff for somewhat older girls, so I would not recommend her very safe, kid stuff, as that will not interest her. Also, no faggotry please, the world is pushing that shit on all of us all the time, so it's best to not open another venue for it. Needs to be available in English, and the more obscure stuff I might not be able to get for her, I assume it is at least somewhat limited what books I can get here.
She is also into horror movies, if that helps.
Thank you to any of you fine gentlemen for any recommendations.
Not at all. If they LIKE a certain genre already, and ask for further things with some criterium? You are far better off giving some suggestions that are NOT harmful than to let them wander into the minefield that is manga which often overlaps with hentai.
Asking a bunch of us WEEBS for advice is... 100% "good dad"!