Het RattenkasteelHet Rattenkasteel.

Het Rattenkasteel ("The Rat's Castle") is a 1948 comic book album in the Belgian comics series The Adventures of Nero by Marc Sleen. It's the fourth album in the series and acclaimed as one of Sleen's best. In the 2000s the story was collected and re-published by the Flemish newspapers Het Belang van Limburg and Gazet van Antwerpen in a special series entitled "De beste 10 volgens Marc Sleen" ("The best 10 according to Marc Sleen"), where Sleen choose his ten favorite "Nero" stories.