EDIT: Thanks for all the recs! I’m going to add a few different authors then let her know that if she likes them I can add more of the series.

I have been tasked with adding books to my 88-yr-old grandmother’s kindle, and am not sure what to add. She likes James Patterson (*sigh* I know...) and Lawrence Sanders, but reads through those in a day and I need to add enough to occupy her for 3 weeks. Previously we got her the “Girl with a Dragon Tattoo” series, and she enjoyed them for the most part but said they contained too much sex (see 88-yr-old Catholic lady). So Hive Mind, any books or series recommendations that are fairly dense but don’t contain a lot of sex?