This one is a bit abstract due to limited time and inspiration! The famous detective in these books is from today's European country, also famous for beer and chocolate.
@archaeofrog@olivetreeann@bkbinthecity@sangwann Heheh! Caught you out! Both Agatha Christie and Miss Marple are most definitely English! I chose these books carefully as they feature her other famous detective, Hercule Poirot, who is Belgian :)
@swilde @678tabby @yorkie @pyrrhula @cookie123 Well done - you correctly guessed Belgium :)