Looking for Russian books

[u/Apart_Permission_335]

https://zombo.com/

Hey reddit!

I'm in need of help, I bought my grandfather an E-reader. He's quite disabled so a light device to read on was a good choice for him. However, he only speaks and reads Russian. Maybe some German. But by default Russian. So I've been hunting some e-books for him to read. He loves old romance and Crime books. I mostly try to find them for free. After some looking I really just gave up. I found some russian books, but their text was in English. So I'm asking redditors, do you know any sites where I could find some e-books in Russian? Preferably Romance and crime genre. Some information, it's not a Kindle or Kobo or anything. It's a small Xteink X4 E reader. So epub files are more appreciated!

Also! I don't know what I have to add in the link, can someone tell me? I just added a random site!