Translations for puddle in French

Here are paragraphs from public domain books translated:

"Proof? Why, look at that puddle of oil. Lupin foresaw that the wheels would require oiling."	— Quelle preuve ? Voyez cette flaque d’huile. Lupin avait même prévu que les rouages auraient besoin d’être graissés, fit Sherlock Holmes non sans admiration.
The Extraordinary Adventures of Arsene Lupin, Gentleman Burglar, by Maurice Leblanc	Arsène Lupin gentleman-cambrioleur, de Maurice Leblanc