Lancelot: Get back, I'm going to break the door down!
I got this because it won the Prix Saint-Michel in 2009 for best comic by a Dutch-speaking author. Linguistically I feel a bit cheated; the book was originally published in French as Kaamelott, tome 3: L'Énigme du Coffre, and won the prize because Dupré's native language is Dutch. That seems to me a bit of a stretch. I note that this category has been dropped for the most recent years of the Prix Saint-Michel.
Alexandre Astier created the TV series Kaamelott and starred in it as King Arthur. It's a humorous take on the Arthurian mythos with the Knights of the Round table turning out to be stupid, lazy, cowardly, and ineffective. This award-winning comic is a story of buried treasure and taxation. All of the reviews that I have found online say that if you liked the series, you'll love the comic. I haven't seen the series and it left me rather unimpressed. But you can get it here in Dutch, as I did, and here in the original French.
This was my top unread comic in a language other than English. Next up is Le Dernier Atlas, written by Fabien Vehlmann and Gwen de Bonneval, art by Hervé Tanquerelle and Frédéric Blanchard.