Translations for ransack in French

Here are paragraphs from public domain books translated:

"In my opinion, it is useless to ransack the castle. The solution of the problem lies elsewhere.”	— Je crois que l’on fait fausse route en s’obstinant à fouiller le château. La solution est ailleurs.
The Extraordinary Adventures of Arsene Lupin, Gentleman Burglar, by Maurice Leblanc	Arsène Lupin gentleman-cambrioleur, de Maurice Leblanc