YA equivalent for grown-ups

Hi guys!
So, when I was a teenager I would read all the time. I was really into YA books like Harry Potter and Percy Jackson, but also Agent 21 etc. Any book that seemed interesting wasn‘t safe from me and I wouldn‘t let it go until I was done.

Now that I‘m older, I miss this sensation of being addicted to a book and feeling the same emotions as the characters. YA obviously doesn‘t do the charm the same way anymore.

I can‘t seem to find any book that does. So please give me some ideas and titles! I really don‘t care of the genre as long as it‘s captivating!

by phoenix21_16